TED-Ed

Bill Shillito: How to organize, add and multiply matrices (2013x78)

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When you're working on a problem with lots of numbers, as in economics, cryptography or 3D graphics, it helps to organize those numbers into a grid, or matrix. Bill Shillito shows us how to work with matrices, with tips for adding, subtracting and multiplying (but not dividing!). [Directed by David Bernal, narrated by Bill Shillito].