Over the last few issues, we've been talking about the math entity called a matrix. I've given examples of how matrices are useful and how matrix algebra can simplify complicated problems. A messy ...
An incorrect version of Supplementary Software 5, in which two brackets were missing in line 8, was inadvertently published with this Article. The HTML has now been updated to include the correct ...
Mathematicians love a good puzzle. Even something as abstract as multiplying matrices (two-dimensional tables of numbers) can feel like a game when you try to find the most efficient way to do it.
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