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Steven Pollack
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Writing on software engineering, statistics, and whatever else.

  • Multiples of 9...

    21 Jun 2026

    I just noticed that their digits add up to multiples of 9.

  • Coordinates are a pain...

    26 May 2026

    But they're a necessary evil (for computation)

  • WTF??

    28 Apr 2026

    What's the Fréchet derivative??

  • Tensor Calculus is Weird

    24 Apr 2026

    Even in R^n calculus with tensors gets weird... fast.

  • Cross Entropy Loss

    25 Mar 2026

    Some quick notes about Cross Entropy as a training loss function in classification...

  • Gentle Introduction to Tensors

    27 May 2014

    Written by Boaz Porat <boaz@ee.technion.ac.il> -- converted to markdown via Claude