Casio FX-7400GII - SOFTWARE VERSION 2-00 User Manual page 81

To assign values to and recall values from an existing matrix
Use the following format with the Mat command to specify a cell for value assignment and
recall.
m n
Mat X [ , ]
X = matrix name (A through Z, or Ans)
m
= row number
n
= column number
Example 1 To assign 10 to the cell at row 1, column 2 of the following matrix:
Matrix A =
Example 2 Multiply the value in the cell at row 2, column 2 of the above matrix by 5
To fill a matrix with identical values and to combine two matrices into a
single matrix
Use the Fill command to fill all the cells of an existing matrix with an identical value and the
Augment command to combine two existing matrices into a single matrix.
Example 1 To fill all of the cells of Matrix A with the value 3
(Mat)
Example 2 To combine the following two matrices:
A = A =
(Mat)
(Mat)
• The two matrices you combine must have the same number of rows. An error occurs if you
try to combine two matrices that have different number of rows.
1 2
3 4
5 6
(MAT) (Mat)
(A) ( )
( )
(MAT) (Mat)
(A) ( )
( )
(MAT) ( ) (Fill)
( ) (Mat)
(A)
1 1 3 3
B = B =
2 2 4 4
(MAT) (Aug)
(A)
(B)
2-43
[OPTN]-[MAT]-[Fill]/[Aug]
(A)
[OPTN]-[MAT]-[Mat]