andrewlienhard.io

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  • Music
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  • Math Sounds
  • About Me

About Me

Hello and welcome to this lonely outpost. To reach out please use the contact form.

  • Mathematics,  Organic Chemistry

    How To Count Isomers

    July 14, 2023 / No Comments

    Organic chemistry, unlike physical chemistry, is not a natural breeding ground for mathematics. Yet math has a way of lurking in unexpected places. 

  • Mathematics,  music-o-mat,  software

    Irrational Composition (Happy Pi Day!)

    October 19, 2021 / No Comments

    Irrational numbers collide with composition. Plus, a new app to generate music.

  • covid,  Mathematics

    Prevalence and the Base Rate Fallacy

    February 1, 2021 / No Comments

    A deep dive into the theory of PPVs using Bayes' Theorem. Or, how diagnostic test calculators work, the hidden gotcha with blind testing and as a bonus: extraterrestrials.

  • Mathematics

    Green’s Functions Illustrated

    January 15, 2020 / No Comments

    There's no shame in admitting this: Green's functions can be a tad bit confusing. The purpose of this post is to provide an overview that will hopefully help you…

  • Mathematics

    Harmonic Functions: Why They’re Nifty

    January 2, 2020 / No Comments

    Harmonic functions arise in countless engineering and physics applications. Here's an overview of these mathematical marvels.

  • Mathematics

    Reversible Pairs

    August 15, 2014 / No Comments

    The math of reversible numbers, e.g., 123 and 321; 40012 and 21004, etc.

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