John D. Cook johndcook.com

Unicode, Tolkien, and Privacy

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Unicode surrogates

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Practical consequences of tokenization details

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ChatGPT tokens and Unicode

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The difference between tokens and words

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A simpler GELU activation function approximation

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Spreading out words in space

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On Making Databases Run Faster

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Duplicating a hand-drawn contour plot

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Reproducing a hand-drawn plot

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What is partial pivoting?

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Max and min orbital speed

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Martian Leap Years

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A calendar for Mars

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Code Profiling Without a Profiler

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Do perimeter and area determine a triangle?

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Settlers versus Hipsters

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Complex golden convergence

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Golden convergence

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Mnemonic images with Grok 3

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