Casio fx-570ES PLUS User Manual page 32

3. Use the Matrix Editor that appears to input the elements of the matrix.
To assign
2 2
1
To edit the elements of a matrix variable:
1. Press
select the matrix variable you want to edit.
2. Use the Matrix Editor that appears to edit the elements of the matrix.
• Move the cursor to the cell that contains the element you want to change,
input the new value, and then press
To copy matrix variable (or MatAns) contents:
1. Use the Matrix Editor to display the matrix you want to copy.
• If you want to copy MatA, for example, perform the following key
operation:
• If you want to copy MatAns contents, perform the following to display the
MatAns screen:
2. Press
to specify the copy destination:
• This will display the Matrix Editor with the contents of the copy
destination.
Matrix Calculation Examples
The following examples use MatA =
1 0 –1
and MatC =
0 –1 1
operation by pressing
following number keys:
3 × MatA (Matrix scalar multiplication).
3 3
Obtain the determinant of MatA (det(MatA)).
4 4
Obtain the transposition of MatC (Trn(MatC)).
5 5
Obtain the inverse matrix of MatA (MatA
6 6
Note: You cannot use
1 0 –1
to MatC
0 –1 1
(Dim)
0 1 0
(MATRIX) (Data), and then, on the menu that appears,
(MATRIX)
(STO), and then perform one of the following key operations
from
2
(MatA),
(MATRIX)
(MATRIX)
for this input. Use the
(MATRIX)
(MatC) (2 3)
1 1
.
(Data) (MatA).
(MATRIX) (MatAns)
(MatA),
2 1
and MatB =
1 1
. You can input a matrix variable into a key
(MATRIX) and then pressing one of the
(MatB),
3
(det) MatA
(Trn) MatC
MatA
E-31
.
(MatB), or
2 –1
–1 2
(MatC).
MatA
–1
).
key to input "
(MatC).
from ,
1
1
–1
".