Matrix multiplication is at the heart of many machine learning breakthroughs, and it just got faster—twice. Last week, DeepMind announced it discovered a more efficient way to perform matrix ...

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.

Out today is an app for your iPhone and iPad that will delight your kids, confound your competitive side, and annoy your friends. Meet Quick Math. The premise of the game, er, educational tool is ...

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