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# Matrix multiplication

| 🗖 nosplit | ↑ parent "Matrix" | words: 80 | descendant words: 84 | descendants: 2
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Since a matrix can be seen as a linear map , the product of two matrices can be seen as the composition of two linear maps: $$fM​(fN​(x)) (104)$$ One cool thing about linear functions is that we can easily pre-calculate this product only once to obtain a new matrix, and so we don't have to do both multiplications separately each time.
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