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Rick Wicklin 0
Compute the square root matrix

Children in primary school learn that every positive number has a real square root. The number x is a square root of s, if x2 = s. Did you know that matrices can also have square roots? For certain matrices S, you can find another matrix X such that X*X

Leo Sadovy 0
Lifelong learning and analytics

I sometimes feel bad about being born. Not so much the actual event, mind you, just the timing. I was born during what should have been my mother’s last year of college. At many colleges in those days, when a woman got married, she was forced to move out of