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Sample operations in this manual are indicated by a icon. Unless specifically stated, all sample operations assume that the calculator is in its initial default setup. Use the procedure under "Initializing the Calculator" to return the calculator to its initial default setup.
For information about the,
,
and
marks that are shown in the sample operations, see "Configuring the Calculator Setup".
Perform the following procedure when you want to initialize the calculator and return the calculation mode and setup to their initial default settings. Note that this operation also clears all data currently in calculator memory.
|
* Company and product names used in this manual may be registered trademarks or trademarks of their respective owners.
Before using the calculator, slide its hard case downwards to remove it, and then affix the hard case to the back of the calculator as shown in the illustration nearby.
Press to turn on the calculator.
Press (OFF) to turn off the calculator.
Auto Power Off
Your calculator will turn off automatically if you do not perform any operation for about 10 minutes. If this happens, press the key to turn the calculator back on.
Display the CONTRAST screen by performing the following key operation: . Next, use
and
to adjust contrast. After the setting is the way you want, press
.
If adjusting display contrast does not improve display readability, it probably means that battery power is low. Replace the battery.
Pressing the or
key followed by a second Alternate function key performs the alternate function of the second key.
The alternate function is indicated by the text printed above the key.
The following shows what the different colors of the alternate function key text mean.
If key marking text is this color: | It means this: |
Yellow | Press ![]() |
Red | Press ![]() |
Purple (or enclosed in purple brackets) | Enter the CMPLX Mode to access the function. |
Green (or enclosed in green brackets) | Enter the BASE-N Mode to access the function. |
The display of the calculator shows expressions you input, calculation results, and various indicators.
Display indicators
This indicator: | Means this: |
![]() | The keypad has been shifted by pressing the ![]() |
![]() | The alpha input mode has been entered by pressing the ![]() |
M | There is a value stored in independent memory. |
STO | The calculator is standing by for input of a variable name to assign a value to the variable. This indicator appears after you press ![]() |
RCL | The calculator is standing by for input of a variable name to recall the variable's value. This indicator appears after you press ![]() |
STAT | The calculator is in the STAT Mode. |
CMPLX | The calculator is in the CMPLX Mode. |
MAT | The calculator is in the MATRIX Mode. |
VCT | The calculator is in the VECTOR Mode. |
7 | The default angle unit is degrees. |
8 | The default angle unit is radians. |
9 | The default angle unit is grads. |
FIX | A fixed number of decimal places is in effect. |
SCI | A fixed number of significant digits is in effect. |
Math | Natural Display is selected as the display format. |
![]() | Calculation history memory data is available and can be replayed, or there is more data above/below the current screen. |
Disp | The display currently shows an intermediate result of a multi-statement calculation. |
For some type of calculation that takes a long time to execute, the display may show only the above indicators (without any value) while it performs the calculation internally.
Some of the calculator's operations are performed using menus. Pressing or
, for example, will display a menu of applicable functions.
The following are the operations you should use to navigate between menus.
When you want to perform this type of operation: | Perform this key operation: |
General calculations | ![]() |
Complex number calculations | ![]() |
Statistical and regression calculations | ![]() |
Calculations involving specific number systems (binary, octal, decimal, hexadecimal) | ![]() |
Equation solution | ![]() |
Matrix calculations | ![]() |
Generation of a number table based on an expression | ![]() |
Vector calculations | ![]() |
Note: The initial default calculation mode is the COMP Mode.
First perform the following key operation to display the setup menu: (SETUP). Next, use
and
and the number keys to configure the settings you want.
Underlined ( ___ ) settings are initial defaults.
Specifies the display format.
Natural Display (MthIO) causes fractions, irrational numbers, and other expressions to be displayed as they are written on paper.
MthIO: Selects MathO or LineO. MathO displays input and calculation results using the same format as they are written on paper. LineO displays input the same way as MathO, but calculation results are displayed in linear format.
Linear Display (LineIO) causes fractions and other expressions to be displayed in a single line.
Note:
Specifies degrees, radians or grads as the angle unit for value input and calculation result display.
Note: In this manual, the
symbol next to a sample operation indicates degrees, while the
symbol indicates radians.
Specifies the number of digits for display of a calculation result.
Fix: The value you specify (from 0 to 9) controls the number of decimal places for displayed calculation results. Calculation results are rounded off to the specified digit before being displayed.
Example:
Sci: The value you specify (from 1 to 10) controls the number of significant digits for displayed calculation results. Calculation results are rounded off to the specified digit before being displayed.
Example:
Norm: Selecting one of the two available settings ( Norm 1 , Norm 2) determines the range in which results will be displayed in non-exponential format. Outside the specified range, results are displayed using exponential format.
Norm 1:
Norm 2:
Example:
Specifies either mixed fraction (ab/c) or improper fraction (d/c) for display of fractions in calculation results.
Specifies either rectangular coordinates
or polar coordinates
for EQN Mode solutions.
Specifies whether or not to display a FREQ (frequency) column in the STAT Mode Stat Editor.
Specifies whether to display a dot or a comma for the calculation result decimal point. A dot is always displayed during input.
Note: When dot is selected as the decimal point, the separator for multiple results is a comma (,). When comma is selected, the separator is a semicolon (;).
Adjusts display contrast. See "Adjusting Display Contrast" for details.
Perform the following procedure to initialize the calculator, which returns the calculation mode to COMP and returns all other settings, including setup menu settings, to their initial defaults.
Calculations can be input in the same form as they are written. When you press the priority sequence of the input calculation will be evaluated automatically and the result will appear on the display.
* 1 Input of the closing parenthesis is required for sin, sinh, and other functions that include parentheses.
* 2 These multiplication symbols ( × ) can be omitted. A multiplication symbol can be omitted when it occurs immediately before an opening parenthesis, immediately before sin or other function that includes parentheses, immediately before the Ran# (random number) function, or immediately before a variable (A, B, C, D, E, F, M, X, Y), scientific constants, π or e.
* 3 The closing parenthesis immediately before the operation can be omitted.
Input example omitting
and
operations in the above example.
Note:
The priority sequence of input calculations is evaluated in accordance with the rules below. When the priority of two expressions is the same, the calculation is performed from left to right.
1st | Parenthetical expressions |
2nd | Functions that require an argument to the right and a closing parenthesis ")" following the argument. |
3rd | Functions that come after the input value ( ![]() ![]() ![]() ![]() |
4th | Fractions |
5th | Negative sign (–), base- n symbols (d, h, b, o)
Since x2 has a higher priority than the negative sign, inputting |
6th | Metric conversion commands (cm ![]() ![]() |
7th | Multiplication where the multiplication sign is omitted |
8th | Permutation ![]() ![]() ![]() |
9th | Dot product (·) |
10th | Multiplication, division ( ×, ÷) |
11th | Addition, subtraction (+, –) |
12th | Logical AND (and) |
13th | Logical OR, XOR, XNOR (or, xor, xnor) |
Selecting Natural Display makes it possible to input and display fractions and certain functions just as they are written in your textbook.
Note: When you press
and obtain a calculation result using Natural Display, part of the expression you input may be cut off. If you need to view the entire input expression again, press
and then use
and
to scroll the input expression.
(Natural Display only)
A value or an expression that you have already input can be used as the argument of a function. After you have input , for example, you can make it the argument of
, resulting in
.
To input
and then change it to
As shown above, the value or expression to the right of the cursor after (INS) are pressed becomes the argument of the function that is specified next. The range encompassed as the argument is everything up to the first open parenthesis to the right, if there is one, or everything up to the first function to the right (sin(30), log2(4), etc.)
This capability can be used with the following functions:
You can select either insert or overwrite as the input mode, but only while Linear Display is selected. In the overwrite mode, text you input replaces the text at the current cursor location. You can toggle between the insert and overwrite modes by performing the operations: (INS). The cursor appears as "
" in the insert mode and as "
" in the overwrite mode.
Note: Natural Display always uses the insert mode, so changing display format from Linear Display to Natural Display will automatically switch to the insert mode.
To delete a single character or function: Move the cursor so it is directly to the right of the character or function you want to delete, and then press . In the overwrite mode, move the cursor so it is directly under the character or function you want to delete, and then press
.
To insert a character or function into a calculation: Use and
to move the cursor to the location where you want to insert the character or function and then input it. Be sure always to use the insert mode if Linear Display is selected.
To clear all of the calculation you are inputting: Press .
While Natural Display is selected, each press of will toggle the currently displayed calculation result between its fraction form and decimal form, its
form and decimal form, or its π form and decimal form.
While Linear Display is selected, each press of will toggle the currently displayed calculation result between its decimal form and fraction form.
Note: With Natural Display (MathO), pressing
instead of
after inputting a calculation will display the calculation result in decimal form. Pressing
after that will switch to the fraction form or π form of the calculation result. The
form of the result will not appear in this case.
Note that the input method for fractions is different, depending upon whether you are using Natural Display or Linear Display.
Note:
To switch a calculation result between improper fraction and mixed fraction form: Perform the following key operation:
To switch a calculation result between fraction and decimal form:
Press .
Inputting a value and pressing (%) causes the input value to become a percent.
Performing an addition or subtraction operation between sexagesimal values, or a multiplication or division operation between a sexagesimal value and a decimal value will cause the result to be displayed as a sexagesimal value. You also can convert between sexagesimal and decimal. The following is the input format for a sexagesimal value: {degrees} {minutes}
{ seconds}
.
Note: You must always input something for the degrees and minutes, even if they are zero.
You can use the colon character (:) to connect two or more expressions and execute them in sequence from left to right when you press .
A simple key operation transforms a displayed value to engineering notation.
Transform the value 1234 to engineering notation, shifting the decimal point to the right.
Transform the value 123 to engineering notation, shifting the decimal point to the left.
In the COMP, CMPLX, or BASE-N Mode, the calculator remembers up to approximately 200 bytes of data for the newest calculation. You can scroll through calculation history contents usingand
.
Note: Calculation history data is all cleared whenever you press
, when you change to a different calculation mode, when you change the display format, or whenever you perform any reset operation.
While a calculation result is on the display, you can press or
to edit the expression you used for the previous calculation.
Note: If you want to edit a calculation when the
indicator is on the right side of a calculation result display (see "Reading the Display"), press
and then use
and
to scroll the calculation.
The last calculation result obtained is stored in Ans (answer) memory. Ans memory contents are updated whenever a new calculation result is displayed.
Your calculator has eight preset variables named A, B, C, D, E, F, X, and Y. You can assign values to variables and also use the variables in calculations.
You can add calculation results to or subtract results from independent memory. The "M" appears on the display when there is any value other than zero stored in independent memory.
Note: Variable M is used for independent memory.
Ans memory, independent memory, and variable contents are retained even if you press , change the calculation mode, or turn off the calculator. Perform the following procedure when you want to clear the contents of all memories.
For actual operations using each function, see the "Examples" section following the list below.
π : π is displayed as 3.141592654, but π = 3.14159265358980 is used for internal calculations.
e : e is displayed as 2.718281828, but e = 2.71828182845904 is used for internal calculations.
sin, cos, tan, sin −1, cos −1 , tan −1 : Trigonometric functions. Specify the angle unit before performing calculations. See .
sinh, cosh, tanh, sinh−1 , cosh −1 , tanh −1 : Hyperbolic functions. Input a function from the menu that appears when you press w. The angle unit setting does not affect calculations. See .
°, r, g : These functions specify the angle unit. ° specifies degrees, r radians, and g grads. Input a function from the menu that appears when you perform the following key operation: . See
.
: Exponential functions. Note that the input method is different depending upon whether you are using Natural Display or Linear Display. See
log : Logarithmic function. Use the key to input log a b as log ( a , b ). Base 10 is the default setting if you do not input anything for a . The
key also can be used for input, but only while Natural Display is selected. In this case, you must input a value for the base. See
.
ln: Natural logarithm to base e . See .
: Powers, power roots, and reciprocals. Note that the input methods for
are different depending upon whether you are using Natural Display or Linear Display. See
.
Note:
: Function for performing numerical integration using the Gauss-Kronrod method. Natural Display input syntax is
, while Linear Display input syntax is
. tol specifies tolerance, which becomes 1 × 10 –5 when nothing is input for tol . Also see "Integration and Differential Calculation Precautions" and "Tips for Successful Integration Calculations" for more information. See
.
: Function for approximation of the derivative based on the central difference method. Natural Display input syntax is
, while Linear Display input syntax is
. tol specifies tolerance, which becomes 1 × 10 –10 when nothing is input for tol . Also see "Integration and Differential Calculation Precautions" for more information. See
.
: Function that, for a specified range of f (x ), determines sum
. Natural Display input syntax is
, while Linear Display input syntax is Σ ( f (x ), a , b ). a and b are integers that can be specified within the range of
. See
.
Note: The following cannot be used in f (x ), a , or b : Pol, Rec, ∫, d / dx , Σ.
Pol, Rec : Pol converts rectangular coordinates to polar coordinates, while Rec converts polar coordinates to rectangular coordinates. See .
Specify the angle unit before performing calculations.
The calculation result for r and and for x and y are each assigned respectively to variables X and Y. Calculation result θ is displayed in the range of
180°.
x ! : Factorial function. See .
Abs : Absolute value function. Note that the input method is different depending upon whether you are using Natural Display or Linear Display. See
Ran# : Generates a 3-digit pseudo random number that is less than 1. The result is displayed as a fraction when Natural Display is selected. See .
RanInt# : For input of the function of the form RanInt#( a , b ), which generates a random integer within the range of a to b . See .
n Pr , n Cr : Permutation ( nPr ) and combination ( nC ) functions. See .
Rnd : The argument of this function is made a decimal value and then rounded in accordance with the current number of display digits setting (Norm, Fix, or Sci). With Norm 1 or Norm 2, the argument is rounded off to 10 digits. With Fix and Sci, the argument is rounded off to the specified digit. When Fix 3 is the display digits setting, for example, the result of 10 ÷ 3 is displayed as 3.333, while the calculator maintains a value of 3.33333333333333 (15 digits) internally for calculation. In the case of Rnd(10÷3) = 3.333 (with Fix 3), both the displayed value and the calculator's internal value become 3.333. Because of this a series of calculations will produce different results depending on whether Rnd is used (Rnd(10÷3) × 3 = 9.999) or not used (10 ÷ 3 × 3 = 10.000). See .
Note: Using functions can slow down a calculation, which may delay display of the result. Do not perform any subsequent operation while waiting for the calculation result to appear. To interrupt an ongoing calculation before its result appears, press
.
Precautions for Integration Calculation Only
Precautions for Differential Calculation Only
When a periodic function or integration interval results in positive and negative f (x) function values
Perform separate integrations for each cycle, or for the positive part and the negative part, and then combine the results.
When integration values fluctuate widely due to minute shifts in the integration interval Divide the integration interval into multiple parts (in a way that breaks areas of wide fluctuation into small parts), perform integration on each part, and then combine the results.
Examples
To perform complex number calculations, first press
(CMPLX) to enter the CMPLX Mode. You can use either rectangular coordinates ( a + bi ) or polar coordinates (
) to input complex numbers. Complex number calculation results are displayed in accordance with the complex number format setting on the setup menu.
Note:
Either of two special commands () can be input at the end of a calculation to specify the display format of the calculation results. The command overrides the calculator's complex number format setting.
CALC lets you save calculation expressions that contain variables, which you can then recall and execute in the COMP Mode ) and the CMPLX Mode (
). The following describes the types of expressions you can save with CALC.
Note: During the time from when you press
until you exit CALC by pressing
, you should use Linear Display input procedures for input.
SOLVE uses Newton's Law to approximate the solution of equations. Note that SOLVE can be used in the COMP Mode ( ) only. The following describes the types of equations whose solutions can be obtained using SOLVE.
Note: During the time from when you press
(SOLVE) until you exit SOLVE by pressing
, you should use Linear Display input procedures for input.
Solutions are always displayed in decimal form.
"(Left Side) – (Right Side) result" shows the result when the right side of the equation is subtracted from the left side, after assigning the obtained value to the variable being solved for. The closer this result is to zero, the higher the accuracy of the solution.
SOLVE performs convergence a preset number of times. If it cannot find a solution, it displays a confirmation screen that shows "Continue: [=]", asking if you want to continue. Press to continue or
to cancel the SOLVE operation.
To start a statistical calculation, perform the key operation (STAT) to enter the STAT Mode and then use the screen that appears to select the type of calculation you want to perform.
To select this type of statistical calculation: (Regression formula shown in parentheses) | Press this key: |
Single-variable (X) | ![]() |
Paired-variable (X, Y), linear regression ( y = A + B x ) | ![]() |
Paired-variable (X, Y), quadratic regression ( y = A + B x + C x2 ) | ![]() |
Paired-variable (X, Y), logarithmic regression ( y = A + Blnx ) | ![]() |
Paired-variable (X, Y), e exponential regression ( y = AeBx) | ![]() |
Paired-variable (X, Y), ab exponential regression ( y = ABx ) | ![]() ![]() |
Paired-variable (X, Y), power regression ( y = AxB ) | ![]() ![]() |
Paired-variable (X, Y), inverse regression ( y = A + B/ x ) | ![]() |
Pressing any of the above keys ( 1 to 8) displays the Stat Editor.
Note: When you want to change the calculation type after entering the STAT Mode, perform the key operation
(STAT)
(Type) to display the calculation type selection screen.
Use the Stat Editor to input data. Perform the following key operation to display the Stat Editor: (STAT)
(Data).
The Stat Editor provides 80 rows for data input when there is an X column only, 40 rows when there are X and FREQ columns or X and Y columns, or 26 rows when there are X, Y, and FREQ columns.
Note: Use the FREQ (frequency) column to input the quantity (frequency) of identical data items. Display of the FREQ column can be turned on (displayed) or off (not displayed) using the Stat Format setting on the setup menu.
To change the data in a cell: In the Stat Editor, move the cursor to the cell that contains the data you want to change, input the new data, and then press .
To delete a line: In the Stat Editor, move the cursor to the line that you want to delete and then press .
To insert a line: In the Stat Editor, move the cursor to the location where you want to insert the line and then perform the following key operation: .
To delete all Stat Editor contents: In the Stat Editor, perform the following key operation: .
To obtain statistical values, press while in the Stat Editor and then recall the statistical variable ( σx , Σx 2 , etc.) you want. Supported statistical variables and the keys you should press to recall them are shown below. For single-variable statistical calculations, the variables marked with an asterisk (*) are available.
Sum: Σx 2 *, Σx *, Σy 2 , Σ y , Σ xy , Σx 3 , Σ x2 y , Σx 4
Number of Items: n *, Mean: , Population Standard Deviation:
,
Sample Standard Deviation:
Regression Coefficients: A, B, Correlation Coefficient: r , Estimated Values:
Regression Coefficients for Quadratic Regression: A, B, C, Estimated Values:
Minimum Value: minX*, minY, Maximum Value: maxX*, maxY
Note: While single-variable statistical calculation is selected, you can input the functions and commands for performing normal distribution calculation from the menu that appears when you perform the following key operation:
. See "Performing Normal Distribution Calculations" for details.
To input the single-variable data x = {1, 2, 2, 3, 3, 3, 4, 4, 5}, using the FREQ column to specify the number of repeats for each items ({ xn ; freq n } = {1;1, 2;2, 3;3, 4;2, 5;1}), and calculate the mean and population standard deviation.
Results: Mean: 3 Population Standard Deviation: 1.154700538
To calculate the linear regression and logarithmic regression correlation coefficients for the following paired-variable data and determine the regression formula for the strongest correlation: ( x , y ) = (20, 3150), (110, 7310), (200, 8800), (290, 9310). Specify Fix 3 (three decimal places) for results.
Results: Linear Regression Correlation Coefficient: 0.923
Logarithmic Regression Correlation Coefficient: 0.998
Logarithmic Regression Formula: y = –3857.984 + 2357.532lnx
Based on the regression formula obtained by paired-variable statistical calculation, the estimated value of y can be calculated for a given x -value. The corresponding x -value (two values, x1 and x2, in the case of quadratic regression) also can be calculated for a value of y in the regression formula.
To determine the estimate value for y when x = 160 in the regression formula produced by logarithmic regression of the data in
. Specify Fix 3 for the result. (Perform the following operation after completing the operations in
.)
Result: 8106.898
Regression coefficient, correlation coefficient, and estimated value calculations can take considerable time when there are a large number of data items.
While single-variable statistical calculation is selected, you can perform normal distribution calculation using the functions shown below from the menu that appears when you perform the following key operation:
P, Q, R: These functions take the argument t and determine a probability of standard normal distribution as illustrated below.
: This function is preceded by the argument X, and determines the normalized variate
.
For the single variable data
= {0;1, 1;2, 2;1, 3;2, 4;2, 5;2, 6;3, 7;4, 9;2, 10;1}, to determine the normalized variate (
) when x = 3, and P( t ) at that point up to three decimal places (Fix 3).
Results: Normalized variate (): –0.762
P( t ): 0.223
Press
(BASE-N) to enter the BASE-N Mode when you want to perform calculations using decimal, hexadecimal, binary, and/or octal values. The initial default number mode when you enter the BASE-N Mode is decimal, which means input and calculation results use the decimal number format. Press one of the following keys to switch number modes:
(DEC) for decimal,
(HEX) for hexadecimal,
BIN) for binary, or
(OCT) for octal.
Note:
Base-n Mode | Input/Output Ranges |
Binary | Positive: 0000000000000000 ![]() Negative: 1000000000000000 ![]() |
Octal | Positive: 00000000000 ![]() Negative: 20000000000 ![]() |
Decimal | –2147483648![]() |
Hexadecimal | Positive: 00000000 ![]() Negative: 80000000 ![]() |
You can input a special command immediately following a value to specify the number mode of that value. The special commands are: d (decimal), h (hexadecimal), b (binary), and o (octal).
You can use any one of the following key operations to convert the currently displayed calculation result to another type of value: (DEC) (decimal),
(HEX) (hexadecimal),
(BIN) (binary),
(OCT)(octal).
Your calculator provides you with logical operators (and, or, xor, xnor) and functions (Not, Neg) for logical and negation operations on binary values. Use the menu that appears when you press (BASE) to input these logical operators and functions.
All of the following examples are performed in the binary mode (l(BIN)).
Note: In the case of a negative binary, octal or hexadecimal value, the calculator converts the value to binary, takes the two's complement, and then converts back to the original number base. For decimal (base-10) values, the calculator merely adds a minus sign.
You can use the following procedure in the EQN Mode to solve simultaneous linear equations with two or three unknowns, quadratic equations, and cubic equations.
To select this calculation type: | Press this key: |
Simultaneous linear equations with two unknowns | ![]() |
Simultaneous linear equations with three unknowns | ![]() |
Quadratic equation | ![]() |
Cubic equation | ![]() |
The following operations are not supported by the Coefficient Editor: . Pol, Rec, and multi-statements also cannot be input with the Coefficient Editor.
Note:
Press(EQN) and then select an equation type from the menu that appears. Changing the equation type causes the values of all Coefficient Editor coefficients to change to zero.
Use the MATRIX Mode to perform calculations involving matrices of up to 3 rows by 3 columns. To perform a matrix calculation, you first assign data to special matrix variables (MatA, MatB, MatC), and then use the variables in the calculation as shown in the example below.
Note: "MatAns" stands for "Matrix Answer Memory". See "Matrix Answer Memory" for more information.
Whenever the result of a calculation executed in the MATRIX Mode is a matrix, the MatAns screen will appear with the result. The result also will be assigned to a variable named "MatAns".
The MatAns variable can be used in calculations as described below.
The following operations are not supported by the Matrix Editor:. Pol, Rec, and multi-statements also cannot be input with the Matrix Editor.
To assign new data to a matrix variable:
To edit the elements of a matrix variable:
To copy matrix variable (or MatAns) contents:
The following examples use and
from
and
from
. You can input a matrix variable into a key operation by pressing
(MATRIX) and then pressing one of the following number keys:
(MatA),
(MatB),
(MatC).
TABLE generates a number table for x and f (x ) using an input f ( x ) function.
Perform the following steps to generate a number table.
For this prompt: | Input this: |
Start? | Input the lower limit of X (Default = 1). |
End? | Input the upper limit of X (Default = 5). |
Step? | Input the increment step (Default = 1).
|
Note:
The function you input for number table generation is deleted whenever you display the setup menu in the TABLE Mode and switch between Natural Display and Linear Display.
Use the VECTOR Mode to perform 2-dimensional and 3-dimensional vector calculations. To perform a vector calculation, you first assign data to special vector variables (VctA, VctB, VctC), and then use the variables in the calculation as shown in the example below.
To assign (1, 2) to VctA and (3, 4) to VctB, and then perform the following calculation: (1, 2) + (3, 4)
Note: "VctAns" stands for "Vector Answer Memory". See "Vector Answer Memory" for more information.
Whenever the result of a calculation executed in the VECTOR Mode is a vector, the VctAns screen will appear with the result. The result also will be assigned to a variable named "VctAns".
The VctAns variable can be used in calculations as described below.
The following operations are not supported by the Vector Editor: . Pol, Rec, and multi-statements also cannot be input with the Vector Editor.
To assign new data to a vector variable:
To assign (2, –1, 2) to VctC
To edit the elements of a vector variable:
To copy vector variable (or VctAns) contents:
1. Use the Vector Editor to display the vector you want to copy.
The following examples use VctA = (1, 2) and VctB = (3, 4) from 1, and VctC = (2, –1, 2) from
. You can input a vector variable into a key operation by pressing
(VECTOR) and then pressing one of the following number keys:
(VctA),
(VctB),
(VctC).
Your calculator comes with 40 built-in scientific constants that can be used in any mode besides BASE-N. Each scientific constant is displayed as a unique symbol (such as π ), which can be used inside of calculations.
To input a scientific constant into a calculation, press (CONST) and then input the two-digit number that corresponds to the constant you want.
The following shows the two-digit numbers for each of the scientific constants.
The values are based on CODATA recommended values (March 2007).
The calculator's built-in metric conversion commands make it simple to convert values from one unit to another. You can use the metric conversion commands in any calculation mode except for BASE-N and TABLE.
To input a metric conversion command into a calculation, press (CONV) and then input the two-digit number that corresponds to the command you want.
The following shows the two-digit numbers for each of the metric conversion commands.
Conversion formula data is based on the "NIST Special Publication 811 (1995)".
Note: The J
cal command performs conversion for values at a temperature of 15°C.
The calculation range, number of digits used for internal calculation, and calculation precision depend on the type of calculation you are performing.
Calculation Range | ± 1 × 10 –99 to ± 9.999999999 × 10 99 or 0 |
Number of Digits for Internal Calculation | 15 digits |
Precision | In general, ± 1 at the 10th digit for a single calculation. Precision for exponential display is ± 1 at the least significant digit. Errors are cumulative in the case of consecutive calculations. |
The calculator will display an error message whenever an error occurs for any reason during a calculation. There are two ways to exit an error message display: Pressing or
to display the location of the error, or pressing
to clear the message and calculation.
While an error message is displayed, press or
to return to the calculation screen. The cursor will be positioned at the location where the error occurred, ready for input. Make the necessary corrections to the calculation and execute it again.
While an error message is displayed, press to return to the calculation screen. Note that this also clears the calculation that contained the error.
Cause:
Action:
Cause:
Action:
Cause: There is a problem with the format of the calculation you are performing.
Action: Make necessary corrections.
Cause: There is a problem with the argument of the calculation you are performing.
Action: Make necessary corrections.
Cause:
Action:
Cause:
Action:
Cause: The calculator could not obtain a solution.
Action:
Cause: The configuration of TABLE Mode parameters caused more than 30 X-values to be generated for a table.
Action: Narrow the table calculation range by changing the Start, End, and Step values, and try again.
Cause: The current differential or integration calculation ends without the ending condition being fulfilled.
Action: Try increasing the tol value. Note that this also decreases solution precision.
Perform the following steps whenever an error occurs during a calculation or when calculation results are not what you expected. If one step does not correct the problem, move on to the next step.
Note that you should make separate copies of important data before performing these steps.
A low battery is indicated by a dim display, even if contrast is adjusted, or by failure of figures to appear on the display immediately after you turn on the calculator. If this happens, replace the battery with a new one.
Removing the battery will cause all of the calculator's memory contents to be deleted.
Power Requirements:
fx-570ES PLUS: AAA-size battery R03 (UM-4) × 1
fx-991ES PLUS: Built-in solar cell; button battery LR44 (GPA76) × 1
Approximate Battery Life:
fx-570ES PLUS: 17,000 hours (continuous display of flashing cursor)
fx-991ES PLUS: 3 years (based on one hour of operation per day)
Power Consumption: 0.0002 W (fx-570ES PLUS)
Operating Temperature: 0°C to 40°C (32°F to 104°F)
Dimensions:
fx-570ES PLUS:
13.8 (H) × 80 (W) × 162 (D) mm
1 / 2" (H) × 31 / 8" (W) × 63 / 8" (D)
fx-991ES PLUS:
11.1 (H) × 80 (W) × 162 (D) mm
3 / 8" (H) × 31 / 8" (W) × 63 / 8" (D)
Approximate Weight:
fx-570ES PLUS: 100 g (3.5 oz) including the battery
fx-991ES PLUS: 95 g (3.4 oz) including the battery
How can I perform input and display results the same way I did on a model that does not have Natural Textbook Display?
Perform the following key operation:(SETUP)
(LineIO). See "Configuring the Calculator Setup" for more information.
How can I change a fraction form result to decimal form?
How can I change a fraction form result produced by a division operation to decimal form?
See "Toggling Calculation Results" for the procedure.
What is the difference between Ans memory, independent memory, and variable memory?
Each of these types of memory acts like "containers" for temporary storage of a single value.
Ans Memory: Stores the result of the last calculation performed. Use this memory to carry the result of one calculation on to the next.
Independent Memory: Use this memory to totalize the results of multiple calculations.
Variables: This memory is helpful when you need to uses the same value multiple times in one or more calculations.
What is the key operation to take me from the STAT Mode or TABLE Mode to a mode where I can perform arithmetic calculations?
Press(COMP).
How can I return the calculator to its initial default settings?
Perform the following operation: (Setup)
(Yes)
When I execute a function calculation, why do I get a calculation result that is completely different from older CASIO calculator models?
With a Natural Textbook Display model, the argument of a function that uses parentheses must be followed by a closing parenthesis. Failing to press after the argument to close the parentheses may cause unwanted values or expressions to be included as part of the argument.
Manufacturer: Responsible within the European Union: |
Here you can download full pdf version of manual, it may contain additional safety instructions, warranty information, FCC rules, etc.
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