2-6-1

Matrix and Vector Calculations

2-6 Matrix and Vector Calculations

This section explains how to create matrices in the Main application, and how to perform

basic matrix calculations.

Tip

•Since a vector can be viewed as 1-row by n-column matrix or n-row by 1-column matrix, this section does not include explanations specifically about vectors. For more information about vector-specific calculations, see the explanations about the applicable [Action] menu items in “2-7 Using the Action Menu”.

Inputting Matrix Data

You can use the 9 (math) keyboard to input matrix values in a single line in the work area, or the ) keyboard to input matrix values using an actual on-screen matrix.

kInputting Matrix Values with the 9 Keyboard

Example: To input the matrix

 

1

2

 

and assign it to the variable “mat1”

 

4

 

 

 

3

 

 

u ClassPad Operation

(1)On the application menu, tap Jto start the Main application.

(2)Press kto display the soft keyboard.

(3)Next, perform the following key operation.

9[[b,c][d,e]]W 0matbw

Tip

•For information about assigning data to a variable, see “Creating and Using Variables” on page 1-7-5.

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