Casio FX-7400G User Manual

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Table of Contents
GUIDELINES LAID DOWN BY FCC RULES FOR USE OF THE UNIT IN THE U.S.A. (not appli-
cable to other areas).
NOTICE
This equipment has been tested and found to comply with the limits for a Class B digital device,
pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protec-
tion against harmful interference in a residential installation. This equipment generates, uses
and can radiate radio frequency energy and, if not installed and used in accordance with the
instructions, may cause harmful interference to radio communications. However, there is no
guarantee that interference will not occur in a particular installation. If this equipment does
cause harmful interference to radio or television reception, which can be determined by turning
the equipment off and on, the user is encouraged to try to correct the interference by one or more
of the following measures:
• Reorient or relocate the receiving antenna.
• Increase the separation between the equipment and receiver.
• Connect the equipment into an outlet on a circuit different from that to which the receiver is
connected.
• Consult the dealer or an experienced radio/TV technician for help.
Caution: Changes or modifications to the product not expressly approved by CASIO could void
the user's authority to operate the product.
CASIO ELECTRONICS CO., LTD.
Unit 6, 1000 North Circular Road,
London NW2 7JD, U.K.
Important!
Please keep your manual and all information
handy for future reference.

Program Mode Command List

[VARS]key
V-WIN
MENU
Xmin
Xmin
Xmax
Xmax
Xscl
Xscl
Ymin
Ymin
Ymax
Ymax
[PRGM]key
Yscl
Yscl
COM
Tmin
Tmin
If
If_
Tmax
Tmax
Then
Then_
Tpth
Tptch
Else
Else_
I·End
IfEnd
FACT
Xfct
Xfct
For
For_
Yfct
Yfct
To
_To_
STAT
Step
_Step_
X
Next
Next
n
n
o
o
While_
!x
!x
Whle
WhileEnd
!x2
!x2
W·End
Do
Do
x"n
x "n
Lp·W
LpWhile_
CTL
x"n-1
x "n-1
Prog
Prog_
minX
minX
Rtrn
Return
maxX
maxX
Brk
Break
Y
Stop
Stop
p
p
!y
!y
JUMP
!y2
!y2
Lbl
Lbl_
!xy
!xy
Goto
Goto_
y"n
y "n
#
#
Isz
Isz_
y"n-1
y "n-1
Dsz
Dsz_
minY
minY
?
?
maxY
maxY
^
^
GRPH
a
a
CLR
b
b
Text
ClrText
c
c
Grph
ClrGraph
List
ClrList
r
r
DISP
Q1
Q1
Stat
DrawStat
Med
Med
Grph
DrawGraph
Q3
Q3
TABL
Mod
Mod
Tabl
DispTable
PTS
G-Con
DrawTG-Con
x1
x1
G-Plt
DrawTG-Plt
y1
y1
REL
x2
x2
y2
y2
=
=
x3
x3
%
%
y3
y3
>
>
<
<
>
>
GRPH
<
<
Y
Y
:
:
Xt
Xt
Yt
Yt
TABL
Strt
F_Start
End
F_End
pitch
F_pitch
[SETUP]key
Con
G-Connect
Plot
G-Plot
Deg
Deg
[SHIFT]key
Rad
Rad
ZOOM
Gra
Gra
Fact
Factor_
Fix
Fix_
V-WIN
Sci
Sci_
V-Win
ViewWindow_
Norm
Norm
Sto
StoV-Win
Auto
S-WindAuto
Rcl
RclV-Win
Man
S-WindMan
SKTCH
Rang
VarRange
Cls
Cls
List1
VarList1
GRPH
List2
VarList2
Y=
Graph_Y=
List3
VarList3
Parm
Graph(X,Y)=(
List4
VarList4
List5
VarList5
Y>
Graph_Y>
VarList6
List6
Y<
Graph_Y<
Graph_Y >
Y>
Y<
Graph_Y <
Plot
Plot_
[ALPHA]key
Line
Line
Vert
Vertical_
Hztl
Horizontal_
[OPTN]key
STAT
LIST
DRAW
List
List_
On
DrawOn
Dim
Dim_
Off
DrawOff
Fill
Fill(
GRPH
Seq
Seq(
GPH1
S-Gph1_
GPH2
S-Gph2_
Min
Min(
GPH3
S-Gph3_
Max
Max(
Scat
Scatter
Mean
Mean(
xy
xyLine
Med
Median(
Hist
Hist
Sum
Sum_
Box
MedBox
CALC
N-Dis
N-Dist
Simp
Simp
Int÷
_Int÷_
X
Linear
Rmdr
_Rmdr_
Med
Med-Med
d/dx
d/dx(
X^2
Quad
STAT
x^
x^
Log
Log
y^
y^
Exp
Exp
Pwr
Power
PROB
LIST
X!
!
List1
List1
nPr
P
List2
List2
nCr
C
List3
List3
Ran#
Ran#
List4
List4
NUM
List5
List5
Abs
Abs_
List6
List6
Int
Int_
MARK
Frac
Frac_
Square
Rnd
Rnd
$
Cross
Intg
Intg_
Dot
ANGL
CALC
o
o
1VAR
1-Variable_
r
r
2VAR
2-Variable_
g
g
o'''
X
LinearReg_
Med
Med-MedLine_
Pol(
Pol(
X^2
QuadReg_
Rec(
Rec(
Log
LogReg_
Exp
ExpReg_
Pwr
PowerReg_
LIST
SRT-A
SortA(
SRT-D
SortD(
GRPH
SEL
On
G_SelOn_
Off
G_SelOff_
TYPE
Y=
Y=Type
Parm
ParamType
Y>
Y>Type
Y<
Y<Type
Y>
Y >Type
Y<
Y <Type
TABL
On
T_SelOn_
Off
T_SelOff_
'
'
"
"
~
~
*
*
/
/
#
#
'
'
"
"
~
~

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Table of Contents
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  • Page 1: Program Mode Command List

    • Consult the dealer or an experienced radio/TV technician for help. List2 List2 JUMP List3 List3 Ran# Ran# Lbl_ List4 List4 Caution: Changes or modifications to the product not expressly approved by CASIO could void Goto Goto_ y"n y "n List5 List5 Abs_ List6 List6 Int_ the user’s authority to operate the product.
  • Page 2 BEFORE USING THE CALCULATOR FOR THE FIRST TIME... This calculator does not contain any main batteries when you purchase it. Be sure to perform the following procedure to load batteries, reset the calculator, and adjust the color contrast before trying to use the calculator for the first time. 1.
  • Page 3 5. Press 6. Use the cursor keys ( ) to select the CONT icon and press or simply press to display the contrast adjustment screen. 7. Press d to make the figure on the screen lighter or e to make them darker. 8.
  • Page 4: Read This First

    Chapter Getting Acquainted — Read This First! The symbols in this manual indicate the following messages. : Important notes : Notes : Reference pages P.000...
  • Page 5: Using The Main Menu

    Getting Acquainted Chapter 1 1. Using the Main Menu The main menu appears on the display whenever you turn on the calculator. It con- tains a number of icons that let you select the mode (work area) for the type of operation you want to perform.
  • Page 6 Getting Acquainted Chapter 1 u u u u u To enter a mode Example To enter the RUN Mode from the Main Menu 1. Press m to display the Main Menu. 2. Use d, e, f, and c to move the highlighting to the RUN icon. 3.
  • Page 7: Key Table

    Getting Acquainted Chapter 1 2. Key Table Alpha Lock Normally, once you press a and then a key to input an alphabetic char- acter, the keyboard reverts to its primary functions immediately. If you press ! and then a, the keyboard locks in alpha input until you press a again.
  • Page 8 Getting Acquainted Chapter 1 Page Page Page Page Page Page Page Page Page Page Page...
  • Page 9: Key Markings

    Getting Acquainted Chapter 1 3. Key Markings Many of the calculator’s keys are used to perform more than one function. The func- tions marked on the keyboard are color coded to help you find the one you need quickly and easily. Function Key Operation The following describes the color coding used for key markings.
  • Page 10 Getting Acquainted Chapter 1 2. Press !Z to display the mode’s set up screen. • This set up screen is just one possible exam- ple. Actual set up screen contents will differ according to the mode you are in and that mode’s current settings.
  • Page 11 Getting Acquainted Chapter 1 u u u u u Angle unit (Angle) 1 (Deg) ..S p e c i f i e s d e g r e e s a s default. 2 (Rad) ..S p e c i f i e s r a d i a n s a s default.
  • Page 12 Getting Acquainted Chapter 1 1 (List4) Table generation and graph 2 (List5) ..drawing using list data. 3 (List6) Press [ to return to the previous menu. Other menus for set up (Display, Simply, Frac) are described in each applicable section of this manual as they come up.
  • Page 13 Getting Acquainted Chapter 1 • Direct Command Execution Example: Selecting executes the DRAW command. k k k k k Exponential Display The calculator normally displays values up to 10 digits long. Values that exceed this limit are automatically converted to and displayed in exponential format. You can specify one of two different ranges for automatic changeover to exponential display.
  • Page 14: Contrast Adjustment

    Getting Acquainted Chapter 1 k k k k k Special Display Formats This calculator uses special display formats to indicate fractions, and sexagesimal values. u u u u u Fractions ..Indicates: 456 ––– u u u u u Sexagesimal Values ..
  • Page 15: When You Keep Having Problems

    Getting Acquainted Chapter 1 7. When you keep having problems… If you keep having problems when you are trying to perform operations, try the fol- lowing before assuming that there is something wrong with the calculator. k k k k k Get the Calculator Back to its Original Mode Settings 1.
  • Page 16: Basic Calculations

    Chapter Basic Calculations In the RUN Mode you can perform arithmetic calculations (addi- tion, subtraction, multiplication, division) as well as calculations in- volving scientific functions. 1. Addition and Subtraction 2. Multiplication 3. Division 4. Quotient and Remainder Division 5. Mixed Calculations 6.
  • Page 17: Addition And Subtraction

    Basic Calculations Chapter 2 1. Addition and Subtraction Example 6.72 + 9.08 g.hc+j.aiw You can input the operation just as it is written. This capability is called “true alge- braic logic.” Be sure to press A to clear the display before starting a new calculation. 2.
  • Page 18: Quotient And Remainder Division

    Basic Calculations Chapter 2 u u u u u To use parentheses in a calculation 2 ! 3 + 4 Example 1 ––––––– You should input this calculation as: (2 ! 3 + 4) ÷ 5 A(c*d+e)/fw Example 2 ––––– 4 ! 5 You can input this calculation as: 6 ÷...
  • Page 19: Mixed Calculations

    Basic Calculations Chapter 2 2(Int÷)hw • Remember that you can use only integers in quotient division operations. You cannot use expressions such as 2 or sin60 because their results have a decimal part. u u u u u To perform remainder division Example To display the remainder produced by 857 ÷...
  • Page 20 Basic Calculations Chapter 2 (2) Parentheses Calculation Priority Sequence Expressions enclosed inside parentheses are always given priority in a calculation. Example 1 100 – (2 + 3) ! 4 Abaa-(c+d) Example 2 (7 – 2) ! (8 + 5) • A multiplication sign immediately in front of an open parenthesis can be omitted. A(h-c)(i+f) •...
  • Page 21: Other Useful Calculation Features

    Basic Calculations Chapter 2 (5) Rounding Example 74 ÷ 3 Ahe/dw The actual result of the above calculation is 24.66666666… (and so on to infinity), which the calculator rounds off. The calculator’s internal capacity is 15 digits for the values it uses for calculations, which avoids accuracy problems with consecutive operations that use the result of the previous operation.
  • Page 22 Basic Calculations Chapter 2 (3) Replay While the result of a calculation is on the display, you can use d and e to move the cursor to any position within the expression used to produce the result. This means you can back up and correct mistakes without having to input the entire calculation. You can also recall past calculations you have already cleared by pressing A.
  • Page 23 Basic Calculations Chapter 2 d(You could also press e.) (See below for details on making corrections.) (5) Making Corrections Use the d and e keys to move the cursor to the position you want to change, and then perform one of the operations described below. After you edit the calculation, you can execute it by pressing w, or use e to move to the end of the calculation and input more.
  • Page 24: Using Variables

    Basic Calculations Chapter 2 ddddd • When you press ![a space is indicated by the symbol ‘‘t’’. The next func- tion or value you input is inserted at the location of ‘‘t’’. To abort the insert opera- tion without inputting anything, move the cursor, press ![again, or press d, e or w.
  • Page 25 Basic Calculations Chapter 2 u u u u u To assign the same value to more than one variable Operation <value or expression>aa<start variable name>a3(~)a<end variable name>w Example To assign the result of 2 to variables A, B, C, D, and E A!9caaAa3(~) u u u u u To clear the contents of all variables In the Main Menu, select the MEM icon and press w.
  • Page 26: Fraction Calculations

    Basic Calculations Chapter 2 8. Fraction Calculations (1) Fraction Display and Input 3 –– Example 1 Display of 1 –– Example 2 Display of 3 Mixed fractions (such as 3 1/4) are input and displayed as: integer{numerator{denominator. Improper fractions (15/7) and proper fractions (such as 1/4) are input and displayed as: numerator{denominator.
  • Page 27 Basic Calculations Chapter 2 Example To convert the result of the previous example to a decimal and then back to a fraction u u u u u To convert between proper and improper fractions Operation Mixed Fraction to Improper Fraction Conversion: !/ Improper Fraction to Mixed Fraction Conversion: !/ Example To convert the result of the previous example to an improper...
  • Page 28 Basic Calculations Chapter 2 (3) Changing the Fraction Simplification Mode The initial default of the calculator is automatic simplification of fractions produced by fraction calculations. You can use the following operation to change the fraction simplification mode to manual. u u u u u To change the fraction simplification mode Example To change the fraction simplification mode to manual (Displays the Set Up Screen.)
  • Page 29 Basic Calculations Chapter 2 K2(CALC)1(Simp)w • F = 3 indicates that 3 is the divisor. • The calculator automatically selects the smallest possible divisor for simplifica- tion. Repeat the above operation to simplify again. 1(Simp)w Try once again. 1(Simp)w This display indicates that further simplification is impossible. u u u u u To simplify using your own divisor Example To perform the above calculation and then specify 9 as the divisor...
  • Page 30: Selecting Value Display Modes

    Basic Calculations Chapter 2 9. Selecting Value Display Modes You can make specifications for three value display modes. Fix Mode This mode lets you specify the number of decimal places to be displayed. Sci Mode This mode lets you specify the number of significant digits to be displayed. Norm 1/Norm 2 Mode This mode determines at what point the display changes over to exponential display format.
  • Page 31: Scientific Function Calculations

    Basic Calculations Chapter 2 u u u u u To specify the number of significant digits (Sci) 1. While the set-up screen is on the display, press 2 (Sci). 2. Press the function key that corresponds to the number of significant digits you want to set (0 to 9).
  • Page 32 Basic Calculations Chapter 2 u u u u u To set the default angle unit Example To change the angle unit from radians to degrees cc1(Deg) • Once you change the angle unit setting, it remains in effect until you change it again using the set up screen.
  • Page 33 Basic Calculations Chapter 2 2(ANGL)2( k k k k k Trigonometric Function Calculations P.29 Always make sure that the default angle unit is set to the required default before performing trigonometric function calculations. u u u u u To perform trigonometric function calculations Example 1 sin (63 °...
  • Page 34 Basic Calculations Chapter 2 u u u u u To perform logarithmic/exponential function calculations Example 1 log1.23 lb.cdw Result: 0.0899051114 Example 2 ln90 Ijaw Result: 4.49980967 1.23 Example 3 To calculate the anti-logarithm of common logarithm 1.23 (10 !0b.cdw Result: 16.98243652 Example 4 To calculate the anti-logarithm of natural logarithm 4.5 ( !ee.fw...
  • Page 35 Basic Calculations Chapter 2 Example Operation Display What is the absolute value of the common logarithm of K[1(NUM) = 0.1249387366 1(Abs)l(3/4)w 0.1249387366 What is the integer part of K[1(NUM) 7800 2(Int)(7800/96)w ––––– ? K[1(NUM) What is the decimal part of 7800 3(Frac)(7800/96)w 0.25...
  • Page 36 Basic Calculations Chapter 2 Example To calculate x and y when r = 25 and % = 56 ° Operation Display !Zcc1(Deg)Q K[2(ANGL)[[ 2(Rec()25,56)w 1 – 13.979 – # 13.97982259 (x) 2 – 20.725 – # 20.72593931 (y) (5) Permutation and Combination u u u u u Permutation u u u u u Combination nPr = –––––...
  • Page 37 Basic Calculations Chapter 2 k k k k k Calculation Priority Sequence The calculation priority sequence is the order that the calculator performs opera- tions. Note the following rules about calculation priority sequence. • Expressions contained in parentheses are performed first. •...
  • Page 38 Basic Calculations Chapter 2 ^ ^ ) • Display Result Command (^ When execution reaches the end of a statement followed by a display result com- mand, execution stops and the result up to that point appears on the display. You can resume execution by pressing the w key.
  • Page 39 Basic Calculations Chapter 2 k k k k k Errors An error message appears on the display and calculation stops whenever the calcu- lator detects some problem. Press A to clear the error message. The following is a list of all the error messages and what they mean. Ma ERROR - (Mathematical Error) •...
  • Page 40 Basic Calculations Chapter 2 k k k k k Memory Status (MEM) You can check how much memory is used for storage for each type of data. You can also see how many bytes of memory are still available for storage. u u u u u To check the memory status 1.
  • Page 41 Basic Calculations Chapter 2 2. Press 1 (DEL). 1(DEL) 3. Press 1 (YES) to clear the data or 4 (NO) to abort the operation without clearing anything. k k k k k Variable Data (VARS) Menu You can use the variable data menu to recall the data listed below. •...
  • Page 42: Table Of Contents

    Basic Calculations Chapter 2 1 (Xmin) ..-axis minimum 2 (Xmax) ..-axis maximum 3 (Xscl) ..-axis scale 1 (Ymin) ..-axis minimum 2 (Ymax) ..-axis maximum 3 (Yscl) ..-axis scale 1 (Tmin) ..Minimum of T 2 (Tmax) ..
  • Page 43 Basic Calculations Chapter 2 The following menu appears whenever you press 1 (X), while the statistical data menu is on the display. 1 (X) ) .... Number of data ) ..... Mean of data 3 (( ) ..Sum of data 4 (( ) ..
  • Page 44 Basic Calculations Chapter 2 The following menu appears whenever you press 3 (GRPH) while the statistical data menu is on the display. 3 (GRPH) )-3( ) .. Statistical graph regression coefficient and multinomial coeffi- cients ) ..... Statistical graph correlation coefficient 1 (Q1) ..
  • Page 45 Basic Calculations Chapter 2 Input a storage area number and then press one of the following function keys to recall the corresponding graph function stored in that storage area. 1 (Y) .... Rectangular coordinate or inequality function 2 (Xt) ... Parametric graph function Xt 3 (Yt) ...
  • Page 46 Chapter Differential Calculations...
  • Page 47: Differential Calculations

    Differential Calculations Chapter 3 • To perform differential calculations, first display the Option Menu, and then input the values shown in the formula below. K2(CALC)[ f(x) Increase/decrease of Point for which you want to determine the derivative d/dx ( f (x), a, !x) $ ––– f (a) The differentiation for this type of calculation is defined as: f (a + !x) –...
  • Page 48 Differential Calculations Chapter 3 This average, which is called the central difference , is expressed as: f (a + !x) – f (a) f (a) – f (a – !x) f '(a) = –– –––––––––– ––– + –––––––––– ––– f (a + !x) – f (a – !x) = ––––––––––...
  • Page 49 Differential Calculations Chapter 3 • Pressing A during calculation of a differential (while the cursor is not shown on the display) interrupts the calculation. • Always perform trigonometric differentials using radians (Rad Mode) as the angle unit.
  • Page 50 Chapter Graphing A collection of versatile graphing tools plus a large 79 ! 47-dot display makes it easy to draw a variety of function graphs quickly and easily. This calculator is capable of drawing the following types of graphs. • Rectangular coordinate (Y =) graphs •...
  • Page 51: Xmin

    Graphing Chapter 4 1. Before Trying to Draw a Graph k k k k k Entering the Graph Mode On the Main Menu, select the GRAPH icon and enter the GRAPH Mode. When you do, the Graph Function (G-Func) menu appears on the display. You can use this menu to store, edit, and recall functions and to draw their graphs.
  • Page 52: Ymax)

    Graphing Chapter 4 2. Input a value for a parameter and press w. The calculator automatically selects the next parameter for input. • You can also select a parameter using the c and f keys. Ymin ....Minimum -axis value Ymax ....
  • Page 53 Graphing Chapter 4 4. To exit the View Window, press Q. • Pressing w without inputting any value also exits the View Window. • The following is the input range for View Window parameters. –9.99E+97 to 9.999E+97 • You can input parameter values up to 7 digits long. Values greater than 10 less than 10 , are automatically converted to a 4-digit mantissa (including nega- tive sign) plus a 2-digit exponent.
  • Page 54 Graphing Chapter 4 b. Press ! 3 (V-Window) 2 (TRIG) to initialize the View Window to the follow- ing settings. Deg Mode Xmin = –360 Ymin = –1.6 Xmax = 360 Ymax = 1.6 Xscl Yscl = 0.5 Rad Mode Xmin = –6.28318 Xmax = 6.28318...
  • Page 55: Press

    Graphing Chapter 4 3. Graph Function Operations You can store up to 10 functions in memory. Functions in memory can be edited, recalled, and graphed. The types of functions that can be stored in memory are: rectangular coordinate functions, parametric functions, and inequalities. k k k k k Specifying the Graph Type Before you can store a graph function in memory, you must first specify its graph type.
  • Page 56 Graphing Chapter 4 • You will not be able to store the expression in an area that already contains a parametric function. Select another area to store your expression or delete the existing parametric function first. This also applies when storing inequalities. u u u u u To store a parametric function Example To store the following functions in memory areas Xt2 and Yt2:...
  • Page 57 Graphing Chapter 4 k k k k k Editing Functions in Memory u u u u u To edit a function in memory Example To change the expression in memory area Y1 from – 5 – 3 (Displays cursor.) eeeed (Changes contents.) (Stores new graph function.) u u u u u To delete a function...
  • Page 58: Drawing Graphs Manually

    Graphing Chapter 4 Use the following View Window parameters. Xmin = –5 Ymin = –5 Xmax = 5 Ymax = 5 Xscl Yscl (Select a memory area that contains a function for which you want to specify non-draw.) 1(SEL) (Specify non-draw.) Unhighlights 4(DRAW) or w (Draws graphs.)
  • Page 59 Graphing Chapter 4 1 (Y >) ..Y > ) inequality 2 (Y <) ..Y < ) inequality 3 (Y #) ..Y > ) inequality 4 (Y $) ..Y < ) inequality Press [ to return to the previous menu. u u u u u To graph using rectangular coordinates (Y =) You can graph functions that can be expressed in the format Example...
  • Page 60 Graphing Chapter 4 u u u u u To graph parametric functions You can graph parametric functions that can be expressed in the following format. (X, Y) = ( (T), (T)) Example To graph the following parametric functions: = 7 cos T – 2 cos 3T = 7 sin T –...
  • Page 61: Other Graphing Functions

    Graphing Chapter 4 Example To graph the inequality > – 2 – 6 Use the following View Window parameters. Xmin = –6 Ymin = –10 Xmax = 6 Ymax = 10 Xscl Yscl 1. In the set-up screen, specify the appropriate graph type for F-Type. !Z[1(Y>)Q 2.
  • Page 62 Graphing Chapter 4 k k k k k Trace With trace, you can move a flashing pointer along a graph with the f, c, d, and e cursor keys and obtain readouts of coordinates at each point. The following shows the different types of coordinate readouts produced by trace. •...
  • Page 63 Graphing Chapter 4 • Pressing d and e moves the pointer along the graph. Holding down either key moves the pointer at high speed. 3. Use f and c to move the pointer between the two graphs. 4. Use e to move the pointer to the other intersection. •...
  • Page 64 Graphing Chapter 4 Example To graph – 3, substituting 3, 1, and –1 for the value of A Use the following View Window parameters. Xmin = –5 Ymin = –10 Xmax = 5 Ymax = 10 Xscl Yscl [1(Y =) (Specifies graph type.) aATx-d, ![aA!=d,...
  • Page 65: Fact)

    Graphing Chapter 4 k k k k k Zoom The zoom feature lets you enlarge and reduce a graph on the display. u u u u u Before using zoom Immediately after drawing a graph, press !2 (ZOOM) to display the Zoom Menu. !2(ZOOM) 1 (BOX) ..
  • Page 66 Graphing Chapter 4 2. Press 1 (BOX), and then use the cursor keys (d, e, f, c) to move the pointer to the location of one of the corners of the box you want to draw on the screen. Press w to specify the location of the corner. 1(BOX) 3.
  • Page 67 Graphing Chapter 4 Use the following View Window parameters. Xmin = –8 Ymin = –30 Xmax = 8 Ymax = 30 Xscl Yscl = 10 1. After graphing the functions, press !2 (ZOOM), and the pointer appears on the screen. !2(ZOOM) 2.
  • Page 68: Xfct)

    Graphing Chapter 4 • The above procedure automatically converts the -range and -range View Win- dow values to 1/5 of their original settings. • You can repeat the factor zoom procedure more than once to further enlarge or reduce the graph. u u u u u To initialize the zoom factor Press ! 2 (ZOOM) 2 (FACT) 1 (INIT) to initialize the zoom factor to the following settings.
  • Page 69 Graphing Chapter 4 • Other menu items are identical to those in the STAT, GRAPH, TABLE Mode menu. The Sketch function lets you draw lines and plot points on a graph that is already on the screen. All the examples in this section that show operations in the STAT, GRAPH or TABLE Mode are based on the assumption that the following function has already been graphed in the GRAPH Mode.
  • Page 70 Graphing Chapter 4 In the RUN or PRGM Mode The following is the syntax for plotting points in these modes. Plot < -coordinate>, < -coordinate> Example To plot a point at (2, 2) Use the following View Window parameters. Xmin = –5 Ymin = –10...
  • Page 71 Graphing Chapter 4 u u u u u To draw a line between two plotted points In the STAT, GRAPH or TABLE Mode Example To draw a line between the two points of inflection on the graph + 2)( – 2) Use the same View Window parameters as in the example on page 1.
  • Page 72 Graphing Chapter 4 In the RUN or PRGM Mode Example To draw a line perpendicular to the -axis from point ( ) = (2, 6) on the graph Use the following View Window parameters: Xmin = –2 Ymin = –2 Xmax = 5 Ymax = 10 Xscl...
  • Page 73 Graphing Chapter 4 2. Use the d and e cursor keys to move the line left and right, and press w to draw the line at the current location. e ~ ew • To draw a horizontal line, simply press 2 (Hztl) in place of 1 (Vert), and use the f and c cursor keys to move the horizontal line on the display.
  • Page 74 Chapter Table & Graph The Table & Graph menu makes it possible to generate numeric tables from functions stored in memory. You can also use multiple functions to generate tables. Since Table & Graph uses the same list of functions that the GRAPH Mode uses for graphing, there is no need to input the same functions in different modes.
  • Page 75: Storing A Function

    Table and Graph Chapter 5 To enter the Table Mode, press m to display the Main Menu, use the cursor keys to select the TABLE icon, and then press w. This is the initial Table Mode screen. To generate a table, you must first specify the variable range.
  • Page 76 Table and Graph Chapter 5 u u u u u To assign values automatically within a specified range Example To assign values from –3 to 3, in increments of 1 (seven values total) 3(RANG) -dwdwbw Strt: ....Variable x start value End: ....
  • Page 77: Generating A Numeric Table

    Table and Graph Chapter 5 4. Generating a Numeric Table Before actually generating a numeric table, you must first select the functions you want to use. Use the f and c cursor keys to move the highlighting to the function you want to use and then press 1 (SEL) to select it.
  • Page 78: Editing A Table

    Table and Graph Chapter 5 5. Editing a Table You can use the editing screen to add lines to or delete lines from an existing table. Press 2 (ROW) to display the Table Editing Menu. 2(ROW) 1 (DEL) ..Deletes line where cursor is located. 2 (INS) ..
  • Page 79 Table and Graph Chapter 5 Graphing a table whose values were generated using more than one function causes the graphs of all the functions to be drawn at the same time. You can set - and P.48 axis parameters using the View Window. Press u or A to return to the numeric table screen from a graph.
  • Page 80: List Operations

    Chapter List Function A list is a kind of container that you can use to store multiple data items. This calculator lets you have up to six lists in memory, and their contents can be used in arithmetic calculations, statistical calcula- tions and for graphing.
  • Page 81 Chapter 6 List Function k k k k k List Data Linking Operation Graph List operation Example: List 1 + List 2 {1, 2, 3} + {4, 5, 6} List 1 + 3 List internal operations Graphing with list data Example: Y1=List 1X LIST...
  • Page 82 List Function Chapter 6 1. List Operations Select the LIST icon in the Main Menu and enter the LIST Mode to input data into a list and to manipulate list data. u u u u u To input values one-by-one Use d and e to move between lists, and f and c to move between cells inside of a list.
  • Page 83 List Function Chapter 6 u u u u u To batch input a series of values 1. Use f to move the cursor to the list name. ffff 2. Use d or e to move the cursor to another list. 3.
  • Page 84 List Function Chapter 6 u u u u u To delete a cell 1. Use d, e, f, or c to move the cursor to the cell you want to delete. 2. Press [ to display the Cell Operation Menu. 3.
  • Page 85 List Function Chapter 6 2. Press [ to display the Cell Operation Menu (if it is not already displayed). 3. Press 2 (DEL-A). The function menu changes to confirm whether you really want to delete all the cells in the list. 2(DEL-A) 4.
  • Page 86 List Function Chapter 6 3. Input the value you want into the new cell (4 in our example) and press w. • Note that the above cell insert operation does not affect cells in other lists. If the data in the list where you insert a cell is somehow related to the data in neighboring lists, inserting a cell can cause related values to become misaligned.
  • Page 87 List Function Chapter 6 Descending order Use the same procedure as that for the ascending order sort. The only difference is that you should press 2 (SRT-D) in place of 1 (SRT-A). u u u u u To sort multiple lists You can link multiple lists together for a sort so that all of their cells are rearranged in accordance with the sorting of a base list.
  • Page 88 List Function Chapter 6 3. Manipulating List Data List data can be used in arithmetic and function calculations. There is also a collec- tion of powerful list data manipulation functions that let you do the following. • Count the number values (Dim) •...
  • Page 89 List Function Chapter 6 u u u u u To replace all cell values with the same value (Fill) K 1 (LIST) 4 (Fill) <value> , 1 (List) <list number 1-6> ) w Example To replace all values in List 1 (36, 16, 58, 46, 56) with 3 AK1(LIST)4(Fill) d,1(List)b)w The following shows the new contents of List 1.
  • Page 90 List Function Chapter 6 u u u u u To find the minimum value in a list (Min) K 1 (LIST) [ 2 (Min) [ [ 1 (List) <list number 1-6> ) w Example To find the minimum value in List 1 (36, 16, 58, 46, 56) AK1(LIST)[2(Min) [[1(List)b)w u u u u u To find the maximum value in a list (Max)
  • Page 91 List Function Chapter 6 Example To calculate the mean of values in List 1 (36, 16, 58, 46, 56) AK1(LIST)[4(Mean) [[1(List)b)w u u u u u To calculate the mean of values of specified frequency (Mean) This procedure uses two lists: one that contains values and one that contains the number of occurrences of each value.
  • Page 92 List Function Chapter 6 u u u u u To calculate the sum of values in a list (Sum) K 1 (LIST) [ [ 2 (Sum) [ 1 (List) <list number 1-6> w Example To calculate the sum of values in List 1 (36, 16, 58, 46, 56) AK1(LIST)[[2(Sum) [1(List)bw 4 Arithmetic Calculations Using Lists...
  • Page 93 List Function Chapter 6 2. Press 1 (LIST) to display the List Data Manipulation Menu. 1(LIST) 3. Press 1 (List) to display the “List” command and input the number of the list you want to specify. 1(List)g (Input List 6.) u u u u u To directly input a list of values You can also directly input a list of values using {, }, and ,.
  • Page 94 List Function Chapter 6 u u u u u To input a value into a specific cell You can input a value into a specific cell inside a list. When you do, the value that was previously stored in the cell is replaced with the new value you input. Example To input the value 25 into cell 2 of List 3 cfaK1(LIST)1(List)d![c!]w...
  • Page 95 List Function Chapter 6 k k k k k Performing Scientific Function Calculations Using a List Lists can be used just as numeric values are in scientific function calculations. When the calculation produces a list as a result, the list is stored in Ans Memory. Example 1 To use List 3 to perform sin (List 3)
  • Page 96 Chapter Statistical Graphs and Calculations This chapter describes how to input statistical data into lists, and how to calculate the mean, maximum and other statistical values. It also tells you how to perform regression calculations. 1. Before Performing Statistical Calculations 2.
  • Page 97: Statistical Calculation Examples

    Statistical Graphs and Calculations Chapter 7 1. Before Performing Statistical Calculations In the Main Menu, select the STAT icon to enter the STAT Mode and display the statistical data lists. Use the statistical data lists to input data and to perform statistical calculations. Use f , c , d and e to move the highlighting around the lists.
  • Page 98 Statistical Graphs and Calculations Chapter 7 k k k k k Inputting Data into Lists Input the two groups of data into List 1 and List 2. a.fwb.cw c.ewewf.cw -c.bwa.dw b.fwcwc.ew Once data is input, you can use it for graphing and statistical calculations. •...
  • Page 99 Statistical Graphs and Calculations Chapter 7 k k k k k Plotting a Scatter Diagram It is often difficult to spot the relationship between two sets of data (such as height and shoe size) by simply looking at the numbers. Such relationships often become clear however, when we plot the data on a graph, using one set as -values and the other set as...
  • Page 100 Statistical Graphs and Calculations Chapter 7 2. Use f and c to move the highlighting to the graph whose draw (On)/non-draw (Off) status you want to change and press 1 (On) or 2 (Off). 3. To return to the graph menu, press Q. u u u u u To draw a graph Example To draw a scatter diagram of Graph 3 only...
  • Page 101 Statistical Graphs and Calculations Chapter 7 u u u u u To display the general graph settings (SET) screen While the graph menu is on the display, press [4 (SET) to display the general graph settings screen. 1(GRPH) [4(SET) • The settings shown here are examples only. The settings on your general graph settings screen may differ.
  • Page 102 Statistical Graphs and Calculations Chapter 7 1 (Hist) ..Histogram (bar graph) 2 (Box) ..Med-box graph 3 (N•Dis) ..Normal distribution curve 1 (X) .... Linear regression graph 2 (Med) ..Med-Med graph 3 (X^2) ..Quadratic regression graph 1 (Log) ..
  • Page 103: Use The Function Key Menu To Select The Name Of The Statistical Data List Whose Values You Want On The -Axis Of The Graph

    Statistical Graphs and Calculations Chapter 7 u u u u u To select the -axis data list (YList) 1. While the graph settings screen is on the display, use f and c to move the highlighting to the YList item. 2.
  • Page 104: List4)

    Statistical Graphs and Calculations Chapter 7 1 (List4) ..List 4 data is frequency data. 2 (List5) ..List 5 data is frequency data. 3 (List6) ..List 6 data is frequency data. Press [ to return to the previous menu. u u u u u To select the plot mark type (M-Type) 1.
  • Page 105 Statistical Graphs and Calculations Chapter 7 1 (Log) ..Logarithmic regression graph 2 (Exp) ..Exponential regression graph 3 (Pwr) ..Power regression graph 4 (2VAR) ..Paired-variable statistical results Press [ to return to the previous menu. k k k k k Displaying Statistical Calculation Results Whenever you perform a regression calculation, the regression formula parameter (such as in the linear regression...
  • Page 106 Statistical Graphs and Calculations Chapter 7 Example To graph a logarithmic regression While logarithmic regression parameter calculation results are on the display, press 4 (DRAW). 4(DRAW) P.101 For details on the meanings of function menu items at the bottom of the display, see “Selecting the Regression Type”.
  • Page 107 Statistical Graphs and Calculations Chapter 7 k k k k k Normal Distribution Curve The normal distribution curve is graphed using the following normal distribution func- tion. ( x–x ) – 2x" (2 !) x" The distribution of characteristics of items manufactured according to some fixed P.99 standard (such as component length) fall within normal distribution.
  • Page 108 Statistical Graphs and Calculations Chapter 7 The following describes the meaning of each of the parameters...... Mean of data ....Sum of data ....Sum of squares ....Population standard deviation " ....Sample standard deviation " ..... Number of data items minX ....
  • Page 109 Statistical Graphs and Calculations Chapter 7 The following are the meanings of the above parameters. a ..Regression coefficient (slope) b ..Regression constant term (intercept) r ..Correlation coefficient k k k k k Med-Med Graph When it is suspected that there are a number of extreme values, a Med-Med graph P.99 can be used in place of the least squares method.
  • Page 110 Statistical Graphs and Calculations Chapter 7 4(DRAW) The following are the meanings of the above parameters. a ..Regression second coefficient b ..Regression first coefficient c ..Regression constant term (intercept) k k k k k Logarithmic Regression Graph Logarithmic regression expresses as a logarithmic function of .
  • Page 111 Statistical Graphs and Calculations Chapter 7 [2(Exp) 4(DRAW) The following are the meanings of the above parameters. a ..Regression coefficient b ..Regression constant term r ..Correlation coefficient k k k k k Power Regression Graph Exponential regression expresses as a proportion of the power of .
  • Page 112 Statistical Graphs and Calculations Chapter 7 The following are the meanings of the above parameters. a ..Regression coefficient b ..Regression power r ..Correlation coefficient k k k k k Displaying Paired-Variable Statistical Results P.102 Paired-variable statistics can be expressed as both graphs and parameter values. (G-Type) When these graphs are displayed, the menu at the bottom of the screen appears as below.
  • Page 113 Statistical Graphs and Calculations Chapter 7 k k k k k Copying a Regression Graph Formula to the Graph Mode After you perform a regression calculation, you can copy its formula to the GRAPH Mode. The following are the functions that are available in the function menu at the bottom of the display while regression calculation results are on the screen.
  • Page 114: Manual Graphing

    Statistical Graphs and Calculations Chapter 7 4(DRAW) 1(X) P.101 • The text at the top of the screen indicates the currently selected graph (STAT Graph 1 = Graph 1, STAT Graph 2 = Graph 2, STAT Graph 3 = Graph 3). 1.
  • Page 115 Statistical Graphs and Calculations Chapter 7 While the statistical data list is on the display, perform the following procedure. 2(Man) Q(Returns to previous menu.) 1(GRPH)1(GPH1) Here we will illustrate this operation by making histogram settings for Graph 1. The following are the meanings of the items that appear in this screen. Strt....
  • Page 116: Performing Statistical Calculations

    Statistical Graphs and Calculations Chapter 7 6. Performing Statistical Calculations All of the statistical calculations up to this point were performed after displaying a graph. The following procedures can be used to perform statistical calculations alone. u u u u u To specify statistical calculation data lists You have to input the statistical data for the calculation you want to perform and specify where it is located before you start a calculation.
  • Page 117 Statistical Graphs and Calculations Chapter 7 k k k k k Paired-Variable Statistical Calculations In the previous examples from “Linear Regression Graph” to “Power Regression Graph,” statistical calculation results were displayed after the scatter diagram was drawn. These were numeric expressions of the characteristics of variables used in the graphic display.
  • Page 118 Statistical Graphs and Calculations Chapter 7 k k k k k Estimated Value Calculation ( , ) After drawing a regression graph with the STAT Mode, you can use the RUN Mode to calculate estimated values for the regression graph's parameters.
  • Page 119 Statistical Graphs and Calculations Chapter 7 The estimated value is displayed for = 40. baaa(value of 1( )w The estimated value is displayed for = 1000.
  • Page 120 Chapter Programming 1. Before Programming 2. Programming Examples 3. Debugging a Program 4. Calculating the Number of Bytes Used by a Program 5. Searching for a File 6. Editing Program Contents 7. Deleting a Program 8. Useful Program Commands 9. Command Reference 10.
  • Page 121: Before Programming

    Programming Chapter 8 1. Before Programming The programming function helps to make complex, often-repeated calculations quick and easy. Commands and calculations are executed sequentially, just like the manual calculation multistatements. Multiple programs can be stored under file names for easy recall and editing. File Name File Name File Name...
  • Page 122: Programming Examples

    Programming Chapter 8 2. Programming Examples Example 1 To calculate the surface area and volume of three regular octahedrons of the dimensions shown in the table below Store the calculation formula under the file name OCTA. Length of One Side (A) Surface Area (S) Volume (V) 7 cm...
  • Page 123 Programming Chapter 8 • Pressing 4 (SYBL) displays a menu of symbols that can be input. 4(SYBL) • You can delete a character while inputting a file name by moving the cursor to the character you want to delete and pressing D. 3.
  • Page 124 Programming Chapter 8 u u u u u To change modes in a program • Pressing 3 (MENU) while the program input screen is on the display causes a mode change menu to appear. You can use this menu to input mode changes into your programs.
  • Page 125 Programming Chapter 8 Surface Area S .. c*!9d*aAxw Volume V ... !9c/d*aAMdw If you simply input the manual calculations shown above however, the calculator would execute them from beginning to end, without stopping. The following com- mands make it possible to interrupt a calculation for input of values and display of intermediate results.
  • Page 126 Programming Chapter 8 1 (EXE) or w (Value of A) Intermediate result produced by ^ • Pressing w while the program’s final result is on the display re-executes the program. P.140 • You can also run a program while in the RUN Mode by inputting: Prog ”<file name>”...
  • Page 127: Debugging A Program

    Programming Chapter 8 3. Debugging a Program A problem in a program that keeps the program from running correctly is called a “bug,” and the process of eliminating such problems is called “debugging.” Either of the following symptoms indicates that your program contains bugs and that debug- ging is required.
  • Page 128: Searching For A File

    Programming Chapter 8 5. Searching for a File You can search for a specific file name using any of the three following methods. • Scroll Search — scroll through the file names in the program list. • File Name Search — input the name of the file. •...
  • Page 129: Editing Program Contents

    Programming Chapter 8 u u u u u To find a file using initial character search Example To use initial character search to recall the program named OCTA 1. While the program list is on the display, press [ 3 (SRC) and input the initial characters of the file you want to find.
  • Page 130 Programming Chapter 8 • The following function keys are also useful when editing program contents. 1 (TOP) ..Moves the cursor to the top of the program 2 (BTM) ..Moves the cursor to the bottom of the program Example 2 To use the OCTA program to create a program that calculates the surface area and volume of regular tetrahedrons when the length of one side is known...
  • Page 131 Programming Chapter 8 Let’s edit the program. 2(EDIT) eeeeDD cd![bc Let’s try running the program. Length of One Side (A) Surface Area (S) Volume (V) 7 cm 84.87048957 cm 40.42293766 cm 10 cm 173.2050808 cm 117.8511302 cm 15 cm 389.7114317 cm 397.7475644 cm 1 (EXE) or w (Value of A)
  • Page 132: Deleting A Program

    Programming Chapter 8 7. Deleting a Program There are two different ways to delete a file name and its program. • Specific program delete • All program delete u u u u u To delete a specific program 1. While the program list is on the display, use f and c to move the highlighting to the name of the program you want to delete.
  • Page 133: Useful Program Commands

    Programming Chapter 8 [2(DEL•A) 2. Press 1 (YES) to delete all the programs in the list or 4 (NO) to abort the operation without deleting anything. P.37 • You can also delete all programs using the MEM Mode. See “Clearing Memory Contents”...
  • Page 134 Programming Chapter 8 Program Command Menu (COM) While the program menu is on the display, press 1 (COM) to display the program command menu. 1(COM) 1 (If) .... If command 2 (Then) ..Then command 3 (Else) ..Else command 4 (I•End) ..
  • Page 135 Programming Chapter 8 Jump Command Menu (JUMP) While the program menu is on the display, press 3 (JUMP) to display the jump command menu. 3(JUMP) 1 (Lbl) ..Lbl command 2 (Goto) ..Goto command 3 (#) ... # (jump) command 1 (Isz) ..
  • Page 136 Programming Chapter 8 3(TABL) 1 (Tabl) ..DispTable command 2 (G•Con) ..DrawTG-Con command 3 (G•Plt) ..DrawTG-Plt command Conditional Jump Relational Operator Menu (REL) While the program menu is on the display, press [ [ 1 (REL) to display the conditional jump relational operator menu.
  • Page 137: Command Reference

    Programming Chapter 8 9. Command Reference k k k k k Command Index Break ..................140 ClrGraph ................144 ClrList ..................144 ClrText ................... 144 DispTable ................145 Do~LpWhile................139 DrawTG-Con, DrawTG-Plt ............ 145 DrawGraph ................145 DrawStat ................144 Dsz ..................
  • Page 138 Programming Chapter 8 Numeric Expressions . Numeric expressions (such as 10, 10 + 20, A) indicate con- stants, calculations, numeric constants, etc. Alpha Characters ..Alpha characters indicate literal strings (such as AB). k k k k k Basic Operation Commands ? (Input Command) Function: Prompts for input of values for assignment to variables during program execution.
  • Page 139 Programming Chapter 8 2. Using a carriage return in place of the multi-statement command makes the dis- played program easier to read. k k k k k Program Commands (COM) If~Then Function: The Then-statement is executed only when the If-condition is true (non- zero).
  • Page 140 Programming Chapter 8 If~Then~Else Function: The Then-statement is executed only when the If-condition is true (non- zero). The Else-statement is executed when the If-condition is false (0). Syntax: <condition> Then <statement> <statement> numeric expression Else <statement> <statement> Parameters: condition, numeric expression Description: 1.
  • Page 141 Programming Chapter 8 For~To~Next Function: This command repeats everything between the For-statement and the Next-statement. The starting value is assigned to the control variable with the first execution, and the value of the control variable is incremented by one with each execution.
  • Page 142 Programming Chapter 8 Description: 1. This command is basically identical to For~To~Next. The only difference is that you can specify the step. 2. Omitting the step value automatically sets the step to 1. 3. Making the starting value less than the ending value and specifying a positive step value causes the control variable to be incremented with each execution.
  • Page 143 Programming Chapter 8 Description: 1. This command repeats the commands contained in the loop as long as its condi- tion is true (non-zero). When the condition becomes false (0), execution pro- ceeds from the statement following the WhileEnd-statement. 2. Since the condition comes after the While-statement, the condition is tested (checked) before the commands inside the loop are executed.
  • Page 144 Programming Chapter 8 3. A subroutine can be used in multiple locations in the same main routine, or it can be called up by any number of main routines. Main Routine Subroutines Prog ”D” Prog ”C” Prog ”E” Prog ”I” Prog ”J”...
  • Page 145 Programming Chapter 8 Example: For 2 " I To 10_ If I = 5_ Then ”STOP” : Stop_ IfEnd_ Next This program counts from 2 to 10. When the count reaches 5, however, it terminates execution and displays the message ”STOP.” k k k k k Jump Commands (JUMP) Function: This command is a count jump that decrements the value of a control variable by 1, and then jumps if the current value of the variable is zero.
  • Page 146 Programming Chapter 8 3. This command can be used in combination with conditional jumps and count jumps. 4. If there is no Lbl-statement whose value matches that specified by the Goto- statement, an error (Go ERROR) occurs. Example: ? " A : ? " B : Lbl 1 : ? "...
  • Page 147 Programming Chapter 8 Description: 1. The conditional jump compares the contents of two variables or the results of two expressions, and a decision is made whether or not to execute the jump based on the results of the comparison. 2. If the comparison returns a true result, execution continues with the statement following the # command.
  • Page 148 Programming Chapter 8 Description: This command draws a statistical graph in accordance with conditions defined within the program. DrawGraph Function: This command draws a graph. Syntax: DrawGraph_ Description: This command draws a graph in accordance with the drawing condi- tions defined within the program. DispTable Function: These commands display numeric tables.
  • Page 149: Text Display

    Programming Chapter 8 Parameters: left side/right side: variable (A to Z), numeric constant, variable expression (such as: A ! 2) relational operator: =, , >, <, $, % G G G G G Description: 1. The following six relational operators can be used in the conditional jump com- mand <left side>...
  • Page 150 Programming Chapter 8 • Graph function input Y = Type_ ..Specifies graph type. ”X – 3” " Y1_ • Graph draw operation DrawGraph_ Example Program ClrGraph_ !W[32 View Window –10, 10, 2, –120, 150, 50_ !31Q 3321Q Y = Type_ ”X ^ 4 –...
  • Page 151 Programming Chapter 8 T SelOn 1_ 341Q J[31 0 " F Start_ 6 " F End_ 1 " F pitch_ DispTable^ !W[431Q !W[432Q DrawTG-Con Executing this program produces the results shown here. Numeric Table Graph k k k k k Using List Sort Functions in a Program P.80 These functions let you sort the data in lists into ascending or descending order.
  • Page 152 Programming Chapter 8 The graph conditions that are required depends on the graph type. See “Changing Graph Parameters”. • The following is a typical graph condition specification for a scatter diagram or line graph. S-Gph1 DrawOn, Scatter, List1, List2, 1, Square_ In the case of an line graph, replace “Scatter”...
  • Page 153 Programming Chapter 8 k k k k k Performing Statistical Calculations • Single-variable statistical calculation 1-Variable List 1, List 2 Frequency data (Frequency) -axis data (XList) 31[11Q • Paired-variable statistical calculation 2-Variable List 1, List 2, List 3 Frequency data (Frequency) -axis data (YList) -axis data (XList) •...
  • Page 154: Program Library

    Chapter Program Library 1 Prime Factor Analysis 2 Greatest Common Measure -Test Value 4 Circle and Tangents 5 Rotating a Figure Before using the Program Library • Be sure to check how many bytes of unused memory is remain- ing before attempting to perform any programming. •...
  • Page 155 PROGRAM SHEET Program for Prime Factor Analysis Description Produces prime factors of arbitrary positive integers For 1 < < 10 Prime numbers are produced from the lowest value first. “END” is displayed at the end of the program. (Overview) is divided by 2 and by all successive odd numbers ( = 3, 5, 7, 9, 11, 13, ..) to check for divisibility.
  • Page 156 Line Program File name " " Goto Goto ÷ " Frac Goto ÷ " Goto Frac " " ÷ Goto Goto – Goto Goto ÷ " Goto ÷ " " Goto...
  • Page 157: Greatest Common Measure

    PROGRAM SHEET Program for Greatest Common Measure Description Euclidean general division is used to determine the greatest common measure for two interers a and b For | |, | | < 10 , positive values are taken as < 10 (Overview) = max |, |...
  • Page 158 Line Program File name " " " " < Goto " (–) – ÷ Goto " Goto Goto a, n b, n...
  • Page 159 PROGRAM SHEET Program for -Test Value Description The mean (sample mean) and sample standard deviation can be used to obtain a -test value. (x – m) : mean of data : sample standard deviation of data n– –1 : number of data items : hypothetical population standard deviation (normally repre- sented by µ...
  • Page 160 Line Program File name List l-Var List " " – ÷ ÷ n– " " Goto • -distribution table The values in the top row of the table show the probability (two-sided probability) that the absolute value of is greater than the table values for a given degree of freedom.
  • Page 161 PROGRAM SHEET Program for Circle and Tangents Description Formula for circle: Formula for tangent line passing (x',y') through point A ( – – represents the slope of the tangent line With this program, slope and intercept – ) are obtained for lines drawn from point ) and are tangent to a circle with a radius of .
  • Page 162 Line Program File name Prog " " " " Prog " " " " " " Plot – – – –1 – Graph Y= " " " " – " " " " Goto " Goto Goto " (–) – –...
  • Page 163 Line Program Goto Prog " " " – " Graph Y= – Graph Y= Goto – Graph Y= Prog " " Prog " " Goto " " File name View (–) (–) Window File name – Graph Y= (–) – Graph Y=...
  • Page 164 Program for Circle and Tangents Step Key Operation Display...
  • Page 165 Program for Circle and Tangents Step Key Operation Display...
  • Page 166 Program for Circle and Tangents Step Key Operation Display...
  • Page 167 Program for Circle and Tangents Step Key Operation Display...
  • Page 168 PROGRAM SHEET Program for Rotating a Figure Description Formula for coordinate transforma- tion: ) # ( cos ' – sin ' sin ' + cos ' Graphing of rotation of any geometric figure by ' degrees. Example To rotate by 30° the triangle defined by points A (2, 0.5), B (6, 0.5), and C (5, 1.5) Notes •...
  • Page 169 Line Program File name View (–) (–) Window " " " " Plot " " " " Plot " " " " Plot Line Plot Line Plot Line " " – Plot – Plot Line – Plot Line Plot Line Plot Plot : Goto 1...
  • Page 170 Program for Rotating a Figure Step Key Operation Display...
  • Page 171 Program for Rotating a Figure Step Key Operation Display (Locate the pointer at X = 5) Continue, repeating from step 8.
  • Page 172 Appendix Appendix A Resetting the Calculator Appendix B Power Supply Appendix C Error Message Table Appendix D Input Ranges Appendix E 2-byte Code Table Appendix F Specifications...
  • Page 173: Appendix A Resetting The Calculator

    Appendix Appendix A Resetting the Calculator Warning! The procedure described here clears all memory contents. Never perform this op- eration unless you want to totally clear the memory of the calculator. If you need the data currently stored in memory, be sure to write it down somewhere before performing the RESET operation.
  • Page 174 Appendix Resetting the calculator initializes it to the following settings. Item Initial Setting Icon Angle Unit Exponent Display Range Norm 1 Fraction Reduction Automatic Mixed Fraction Display Graph Type Rectangular coordinate (Y=) Statistical Graph Automatic Variable Memory Clear Answer Memory (Ans) Clear Graphic Display/Text Display Clear...
  • Page 175: Appendix B Power Supply

    Appendix Appendix B Power Supply This unit is powered by two AAA-size (LR03 (AM4) or R03 (UM-4)) batteries. In addi- tion, it uses a single CR2032 lithium battery as a back up power supply for the memory. If the following message appears on the display, immediately stop using the calcula- tor and replace batteries.
  • Page 176 Appendix (Should a battery leak, clean out the battery compartment of the unit immedi- ately, taking care to avoid letting the battery fluid come into direct contact with your skin.) Keep batteries out of the reach of small children. If swallowed, consult with a physician immediately.
  • Page 177 Appendix u u u u u To replace the memory back up battery * Before replacing the memory back up battery, switch on the unit and check to see if the “Low battery!” message appears on the display. If it does, replace the main power supply batteries before replacing the back up power supply battery.
  • Page 178: Appendix C Error Message Table

    Appendix Appendix C Error Message Table Message Meaning Countermeasure 1 Calculation formula contains an 1 Use d or e to display the Syn ERROR error. point where the error was generated and correct it. 2 Formula in a program contains 2 Use d or e to display the point an error.
  • Page 179 Appendix Message Meaning Countermeasure Stk ERROR • Execution of calculations that • Simplify the formulas to keep exceed the capacity of the stack stacks within 10 levels for the for numeric values or stack for numeric values and 26 levels commands.
  • Page 180: Appendix D Input Ranges

    Appendix Appendix D Input Ranges Internal Function Input ranges Accuracy Notes digits As a rule, However, for tan (DEG) | | < 9 $ 10 ° accuracy is 90(2 +1):DEG G G G G G (RAD) | | < 5 $ 10 15 digits #rad ±1 at the...
  • Page 181 Appendix Internal Function Input ranges Accuracy Notes digits < 1 $ 10 ° ’ ” As a rule, 0 < accuracy is 15 digits ±1 at the | < 1 $ 10 &' 10th digit. Sexagesimal display: ° ’ ” | <...
  • Page 182 Appendix Appendix E 2-byte Command Table Spaces in the following commands are indicated by “]”. OPTN menu commands (, Max(, Min(, Mean(, Median(, Seq(, Dim, Fill(, Sum, List VARS menu commands Y, Xt, Yt, Xmin, Xmax, Xscl, Ymin, Ymax, Yscl, Tmin, Tmax, Tptch, Xfct, Yfct, Q , F]Start, F]End, F]pitch, Commands available with the W key If, Then, Else, IfEnd, For, To, Step, Next, While, WhileEnd, Do, LpWhile, Return,...
  • Page 183: Appendix F Specifications

    Appendix Appendix F Specifications Model: fx-7400G Calculations / Graph Function Basic calculation functions: Negative numbers; exponents; parenthetical addition, subtraction, multiplication, di- vision (with priority sequence judgement function - true algebraic logic) Built-in scientific functions: Trigonometric/inverse trigonometric functions (angle units: degrees, radians, grads); logarithmic/exponential functions;...
  • Page 184 Appendix Graph Types: Rectangular coordinate: Parametric: ) = ( (T), (T)) > < Inequality: > < Graph Function Memory: Graph function storage, editing, selection, drawing Graph Functions: View Window parameter setting; trace; scroll; overwrite; list graph; zoom [box, factor (zoom in, zoom out, original size)]; sketch [plot; line; horizontal/vertical lining]; manual graphing;...
  • Page 185 Appendix Program capacity: 7 kbytes (max.) General Display system: 13-character $ 6-line display; 10-digit mantissa and 9-digit mantissa and 2-digit ex- ponent when using exponential format for calculations: displays sexagesimal, frac- tion values Text display: Function commands, program commands, alpha characters within remaining memory capacity Error check function: Check for illegal calculations (using values greater than 10...
  • Page 186 List2 List2 JUMP List3 List3 Ran# Ran# Lbl_ List4 List4 Caution: Changes or modifications to the product not expressly approved by CASIO could void Goto Goto_ y %n List5 List5 Abs_ List6 List6 Int_ the user’s authority to operate the product.