20050501
k
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
9
Keyboard”,
perform the following operation.
u
ClassPad Operation
(1) Recall the value in row 2, column 1 of MATRIX variable “mat1”.
0mat
b
9
[c,b]
w
↑
↑
Row Column
2-6-2
Matrix and Vector Calculations
(2) Assign “5” to the element at row 1, column 2 of MATRIX variable “mat1”.
f
W0mat
b
9
[b,c]
w
Tip
• You can also perform the above operations on the “ans” variable (page 2-2-2) when it contains
MATRIX data.
Example:
[[b,c][d,e]]
w
1
2
3
4
D
[c,b]
w
3
Summary of Contents for ClassPad 300 PLUS
Page 11: ...20050501 ClassPad 300 PLUS ClassPad OS Version 2 20 ...
Page 197: ...20050501 2 10 7 Using Verify 4 Input x 2 1 and press E 5 Input x i x i and press E ...
Page 649: ...20050501 u Graph Line Clustered D u Graph Line Stacked F 13 8 2 Graphing ...
Page 650: ...20050501 u Graph Line 100 Stacked G u Graph Column Clustered H 13 8 3 Graphing ...
Page 651: ...20050501 u Graph Column Stacked J u Graph Column 100 Stacked K 13 8 4 Graphing ...
Page 652: ...20050501 u Graph Bar Clustered L u Graph Bar Stacked 13 8 5 Graphing ...