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#permutation — Public Fediverse posts

Live and recent posts from across the Fediverse tagged #permutation, aggregated by home.social.

  1. One day, one decomposition
    A215940: Difference between the n-th and the first (identity) permutation of (0,...,m-1), interpreted as a decimal number, divided by 9 (for any m for which 10! >= m! >= n)

    3D graph, threejs - webGL ➡️ decompwlj.com/3Dgraph/A215940.
    2D graph, first 500 terms ➡️ decompwlj.com/2Dgraph500terms/

    #decompwlj #math #mathematics #sequence #OEIS #javascript #php #3D #difference #decimal #numbers #permutation #graph #threejs #webGL

  2. One day, one decomposition
    A115921: Numbers k such that the decimal digits of phi(k) are a permutation of those of k

    3D graph, threejs - webGL ➡️ decompwlj.com/3Dgraph/A115921.
    2D graph, first 500 terms ➡️ decompwlj.com/2Dgraph500terms/

    #decompwlj #maths #mathematics #sequence #OEIS #javascript #php #3D #decimal #numbers #digits #phi #permutation #graph #threejs #webGL