Vector Calculations (Vector); Vector Answer Memory; Assigning And Editing Vector Variable Data; To Edit The Elements Of A Vector Variable - Casio fx-115ES PLUS User Manual

setting,
while 20 rows are supported for the "f(x).g(x)" setting. "You can
use the number table screen for viewing values only. Table contents cannot
be ed~ed. "The number table generation operation causes the contents of
variable X to be changed.
Important: The function you input for number table generation is deleted
whenever you displaythe setup menu in the TABLE Mode andsw~chbetween
Natural Display and Linear Display.
~t!i'-q1ilii~ik)iiil¥J'"iT!!RL_
~i"-]
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.
h
To assign (1. 2) to VctA and (3. 4) to VctB. and then perform the
following calculation: (1. 2) + (3. 4)
1. Press @!!)III (VECTOR) to enter the VECTOR Mode.
2. Press (I)(VctA)!I)(2).
"
This will display the Vector Editor for input
of the 2-dimensioflal vector for VctA.
E vere
R_ DI
-A"
stands for "VetA".
3. Input the elements of VctA: 1 1512151.
4. Perform the following key operation: @ III (VECTOR) m (Data)
m(VctB)m(2).
" This will display the Vector Editor for input of the 2-dimensional vector
for VetB.
5. Input the elements of VctB: 31514151.
6. Press @ to advance to the calculation screen. and perform the calculation
(VctA + VctB): @ III (VECTOR) [ID (VctA) IE I!!iIIII (VECTOR)
(!J (VctB) 151.
"
This will display the VctAns screen with the calculation results.
vere
I V~e I
VctA+VctEl
..~
1
-AnS- stands for
-7 - 6 "VetAns".
o 4
Note: "VetAns" stands for "Vector Answer Memory". See "Vector Answer
Memory" for more information.
Vector Answer Memory .
Whenever the result of a calculation executed in the VECTOR Mode is a
vector. the VctAns screen will appear w~h the result. The result also will be
assigned to a variable named "VctAns".
The VctAns variable can be used in calculations as described below.
"
To insert the VctAns variable into a calculation. perform the following key
operation:
I!!iIIII
( VECTOR) III (VctAns).
" Pressing anyone of the following keys while the VctAns screen is displayed
will switch automatically to the calculation screen: IE. 13. IX). 1:). The
calculation screen will show the VctAns variable followed by the operator
for the key you pressed.
E-41
Assigning and Editing Vector Variable Data
Important: The following operations are not supported by the Vector Editor:
1iID. I!!ilIiID(M-). I!!iI ~(STO). Pol. Rec. +R. and multi-statements also
cannot be input with the Vector Editor.
To assign new data to a vector variable:
1. Press I!!iIIII (VECTOR) (I) (Dim). and then. on the menu that appears,
select the vector variable to which you want to assign data.
2. On the next menu that appears. select dimension (m).
3. Use the Vector Editor that appears to input the elements of the vector.
1!!1. To assign (2. -1,2) to VctC
I!!iIIII(VECTOR)(I)(Dim)[ID(VctC)(I)(3)
Ie
[
21518 1 1512151
To edit the elements of a vector variable:
1. Press I!!iIIII (VECTOR)m (Data), and then. on the menu that appears.
select the vector variable you want to edit.
2. Use the Vector Ed~or that appears to ed~ the elements of the vector.
"
Move the cursor to the cell that contains the element you want to change.
input the new value. and then press 151.
To copy vector variable (or VctAns) contents:
1. Use the Vector Ed~or to display the vector you want to copy.
" If you want to copy VetA, for example, performthe following key operation:
I!!iIIII(VECTOR) m (Data) (I) (VctA).
" If you want to copy VctAns contents. perform the following to display the
VctAns screen: @1!!iI1II(VECTOR)III(VctAns)l5I.
2. Press I!!ilIi!!!I(STO). and then perform one ofthe following key operations
to specify the copy destination: 8(VctA). B(VctB). or ffij(VctC).
"This will display the Vector Editor with the contents of the copy
destination.
Vector Calculation Examples
The followingexamplesuse VetA= (1. 2) andVctB = (3. 4) from6. andVctC =
(2. -1. 2) from h. You can input a vector variable into a key operation by
pressing I!!iIIII(VECTOR) and then pressing one of the following number
keys: [ID(VetA). (!J(VctB), III(VctC).
h
3 x
VetA (Vector scalar multiplication).
3 x
VetA
-
VetB (Calculation
example usingVctAns)
@3lX)VctAl5I [..~
EIVctBIi)
[...,
vere
61
vere
~I
E-42