Casio CFX-9970G Manuel - Page 15

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• The two matrices must have the same dimensions in order to be added or

subtracted. An error occurs if you try to add or subtract matrices of different

dimensions.

• For multiplication, the number of columns in Matrix 1 must match the number of

rows in Matrix 2. Otherwise, an error occurs.

• You can use an identity matrix in place of Matrix 1 or Matrix 2 in the matrix

arithmetic format. Use the matrix command menu's Identity command (1)

to input the identity matrix.

Example 3

To multiply Matrix A (from Example 1) by a 2

1(Mat)aA*

6(g)1(Iden)cw

Number of rows and columns.

k k k k k Matrix Scalar Product

The following is the format for calculating a matrix scalar product, which multiplies

the value in each cell of the matrix by the same value.

Scalar value

Example

Calculate the scalar product of the following matrix using a

multiplier value of 4 :

Matrix A =

e1(Mat)aAw

k k k k k Determinant

3 (Det)

Matrix

Mat A

Mat Z

MatAns

Matrix

Mat A

Mat Z

MatAns

Matrix Calculations

2 identity matrix

6 - 4