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education/math/Matrices.md
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## Multiplying matrices ## Multiplying matrices
To multiply two matrices, the number of columns for the first option must match the number of columns in the second. To multiply two matrices, the number of columns for the first option must match the number of columns in the second.
To get answers, go through each entry in the second matrix, entry by entry, and multiply by every item in the matching row of the first one, then add all of those together, To get answers, go through each entry in the second matrix, entry by entry, and multiply by every item in the matching row of the first one, then add all of those together.
https://www.youtube.com/watch?v=XkY2DOUCWMU
## Adding matrices