If A and B are partitioned into submatrices, for example, Then AB can be expressed as provided
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Then AB can be expressed as
provided the sizes of the submatrices of A and B are such that the indicated operations can be performed. This method of multiplying partitioned matrices is called block multiplication. In each part, compute the product by block multiplication. Check your results by multiplying directly.
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Related Book For
Elementary Linear Algebra with Applications
ISBN: 978-0471669593
9th edition
Authors: Howard Anton, Chris Rorres
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