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1. '''Matrix Multiplication''' | 1. '''Matrix Multiplication''' | ||
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| − | 2, | + | A [[matrix multiplication]] is a production of a new matrix from a pair of matrices. |
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| + | Matrices can only multiply if the number of columns for the first matrix equals the number of rows for the second matrix. | ||
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| + | ''For example'' | ||
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| + | Multiplying AB | ||
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| + | A ---> 3x2 matrix (3 is the # of rows, and 2 is the # of columns) | ||
| + | B ---> 2x3 matrix (2 is the # of rows, and 3 is the # of columns) | ||
| + | |||
| + | THEY DO CAN MULTIPLY! | ||
Revision as of 17:02, 7 December 2011
Matrix Multiplication and Coordinate Systems
1. Matrix Multiplication
A matrix multiplication is a production of a new matrix from a pair of matrices.
Matrices can only multiply if the number of columns for the first matrix equals the number of rows for the second matrix.
For example
Multiplying AB
A ---> 3x2 matrix (3 is the # of rows, and 2 is the # of columns) B ---> 2x3 matrix (2 is the # of rows, and 3 is the # of columns)
THEY DO CAN MULTIPLY!
