Quantitative Analysis for Management, 13/e

Long description

The 2 by 2 matrix shows the following elements.

• Row 1: 2, 5

• Row 2: 1, 8

Value equals the difference of 2 times 8 and 1 times 5, which equals 11.

The 3 by 3 matrix shows the following elements.

• Row 1: 3, 1, 2

• Row 2: 2, 5, 1

• Row 3: 4, negative 2, negative 1

The 3 by 3 matrix has been redrawn to show 5 columns and 3 rows as follows.

• Row 1: 3, 1, 2, 3, 1

• Row 2: 2, 5, 1, 2, 5

• Row 3: 4, negative 2, negative 1, 4, negative 2

First primary diagonal product: 3 times 5 times negative 1

Second primary diagonal product: 1 times 1 times 4

Third primary diagonal product: 2 times 2 times negative 2

Sum of primary diagonal products equals negative 15 plus 4 plus negative 8 equals negative 19

First secondary diagonal product: 4 times 5 times 2

Second secondary ...