Matrix A matrix is a rectangular arrangement of numbers in rows and columns Each number in a matrix is called an Element. The dimensions of a matrix are.

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Presentation transcript:

Matrix A matrix is a rectangular arrangement of numbers in rows and columns Each number in a matrix is called an Element. The dimensions of a matrix are the numbers of rows and columns. The matrix above has three rows and four columns, so the dimensions Of the matrix are 3 x 4 ( read “3 by 4”) Dimension of a matrix = Rows x Columns

The product of two matrices A and B is defined only when the number of columns in A is equal to the number of rows in B.

Homework: Page 584-585: #7-12, 14, 17, 18-24