Casio fx-570ES PLUS Manual De Usuario

E-31

3. Use the Matrix Editor that appears to input the elements of the matrix.

 

To assign 

1   0  –1
0  –1   1

 to MatC 

 

 

(MATRIX) 

 

 

(Dim)(MatC)(2s3)

   

1 

 0  1  0  1  1  

1. Press 

(MATRIX)(Data), and then, on the menu that appears, 

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 

. 

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: 

(MATRIX)(Data)(MatA).

•  If you want to copy MatAns contents, perform the following to display the 

MatAns screen: 

(MATRIX)(MatAns).

2. Press 

=(STO), and then perform one of the following key operations 

to specify the copy destination: 

(MatA), (MatB), or @(MatC). 

• This will display the Matrix Editor with the contents of the copy 

destination.

The following examples use MatA = 

2  1
1  1

 and MatB = 

  2  –1
–1  2

 from 

, 

and MatC = 

1   0  –1
0  –1   1

 from 

. You can input a matrix variable into a key

operation by pressing 

(MATRIX) and then pressing one of the 

following number keys: 

(MatA), (MatB), (MatC). 

 

3 × MatA (Matrix scalar multiplication).

 

 

 3  MatA 

 

Obtain the determinant of MatA (det(MatA)).

 

            

(MATRIX)(det) MatA 

 

 

Obtain the transposition of MatC (Trn(MatC)).

 

 

(MATRIX)(Trn) MatC 

 

Obtain the inverse matrix of MatA (MatA

–1

).

Note: You cannot use 

 for this input. Use the  key to input “ 

–1

”.

 

 

MatA