Ask HN: Where are the good search engines for mathematical formulas?

Ask HN: Where are the good search engines for mathematical formulas?

I am looking for effective search engines specifically designed for mathematical formulas. So far, my search has been disappointing; approach0.xyz is offline, onmath.com returns irrelevant results like p = m v when I search for F = m a, and search.mathweb.org appears to be a collection of abandoned projects. Does anyone know of a reliable tool for this purpose?

in no particular order: https://matlas.ai https://www.mathdeck.org https://portal.mardi4nfdi.de/wiki/Portal https://www.theoremsearch.com/search https://ansumandas441.github.io/mathematical-discovery-engin...
  1. MrCoffee7

    in no particular order:

    https://matlas.ai

    https://www.mathdeck.org

    https://portal.mardi4nfdi.de/wiki/Portal

    https://www.theoremsearch.com/search

    https://ansumandas441.github.io/mathematical-discovery-engin...

  2. recursivecaveat

    The encyclopedia of integer sequences can be quite useful: https://oeis.org/

  3. throwawayffffas

    https://www.wolframalpha.com/

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2026-07-07