A series of college algebra lectures: An Introduction to Matrices, The Arithmetic of Matrices, Multiplying Matrices by a Scalar, Multiplying Matrices, Multiplying Matrices: Can They Multiply?
An Introduction to Matrices
The Arithmetic of Matrices
Operations with Matrices
Multiplying Matrices by a Scalar
Multiplying Matrices: Can They Multiply?
To multiply a matrix with another they must have compatible dimensions.
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