Casio ClassPad 300 Manual de usuario Pagina 124

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20021201
k Matrix Variable Element Operations
You can recall the value of any element of a MATRIX variable. When the data
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34
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
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.
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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”.
0matb9[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”.
fW0matb9[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
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D[c,b]w 3
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