Step & Key Operation
2 Enter a 3 x 3 matrix B.
2nd F 
MATRIX 
B 
2 
3 
ENTER 
3
1 
ENTER 
2 
ENTER 
3 
ENTER
4 
ENTER 
5 
ENTER 
6 
ENTER
7 
ENTER 
8 
ENTER 
9 
ENTER
DisplayNotes
ENTER
3-1 Multiply the matrices A and B together at the home screen.
2nd F 
MATRIX 
A 
1 
X 
2nd F 
MATRIX
A 
2 
ENTER
2nd F 
OPTION 
C
2 
ENTER 
ENTER
2nd F 
QUIT
Matrix multiplication can be performed if the num- ber of columns of the first matrix is equal to the num- ber of rows of the second matrix. The sum of these multiplications (1.1 + 2.4
+1.7) is placed in the 1,1 (first row, first column) po- sition of the resulting ma- trix. This process is re- peated until each row of A has been multiplied by each column of B.
Matrix multiplication can be performed easily by the calculator.