John D. Cook johndcook.com

All you need is Tofolli gates

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HIPAA compliant AI

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Kalman and Bayes average grades

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Roman moon, Greek moon

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Hyperbolic version of Napier’s mnemonic

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Artemis II, Apollo 8, and Apollo 13

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Pentagonal numbers are truncated triangular numbers

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Quantum Y2K

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Morse code tree

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An AI Odyssey, Part 3: Lost Needle in the Haystack

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Computing sine and cosine of complex arguments with only real functions

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Lebesgue constants

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How much precision can you squeeze out of a table?

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From Mendeleev to Fourier

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Mendeleev’s inequality

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Set intersection and difference at the command line

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Embedded regex flags

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A lesser-known characterization of the gamma function

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Tighter bounds on alternating series remainder

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Powers of finite decimals are finite decimals

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