20060301
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
“2-8 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.
k
Inputting Matrix Values with the
9
Keyboard
Example: To input the matrix
1 2
and assign it to the variable “mat1”
3 4
u
ClassPad Operation
(1) On the application menu, tap
J
to start the Main application.
(2) Press
k
to display the soft keyboard.
(3) Next, perform the following key operation.
9
[[b,c][d,e]]
W
0mat
b
w
2-6-1
Matrix and Vector Calculations
Tip
• For information about assigning data to a variable, see “Creating and Using Variables” on page
1-7-5.
