User Manual

20060301

Matrix Variable Element Operations

You can recall the value of any element of a MATRIX variable. When the data

1 2

3 4

is assigned to matrix “mat1”, for example, you can recall the element located at row 2,

column 1.

You can also assign a value to any element in a matrix. For example, you could assign the

value “5” to the element at row 1 column 2 in “mat1”, which produces the matrix

1 5

3 4

After performing the procedure under “Inputting Matrix Values with the



Keyboard”,

perform the following operation.

ClassPad Operation

(1) Recall the value in row 2, column 1 of MATRIX variable “mat1”.

K?R



:A@;

l

Row Column

2-6-2

Matrix and Vector Calculations

(2) Assign “5” to the element at row 1, column 2 of MATRIX variable “mat1”.

6K?R



:@A;

Tip

• You can also perform the above operations on the “ans” variable (page 2-2-2) when it contains

MATRIX data.

Example:

::@A;:BC;;

1 2

3 4

:A@;