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#mathsky — Public Fediverse posts

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

  1. My first attempt at a #DiscreteDynamicalSystem Take a number, n If (n-1) is prime then map n -> n^2 If (n-1) is composite then map n-> Aliquot sum of (n-1) Numbers 1-19 all end in a cycle. I am not sure about 20. eg. 6 -> 36 -> 13 -> 16 -> 9 -> 7 -> 6. #mathsky #recreationalmaths #mathsart

  2. New oeis.org/A393283 just dropped. Take a triangular array starting (0),(1,0) Now draw a ray from the tip down to the next term. Each new term is the sum of terms on or adjacent to this ray. 0 1,0 1,1,0 2,3,2,0 Try this in mod 2 for a #cellularautomata. #mathsky #sequences #recreationalmaths

    A393283 - OEIS

  3. New game just dropped: #Vector-bet Can you create a letter of the alphabet using a polynomial with vector coefficients? Have a play for yourself with my #GeoGebra widget: www.geogebra.org/m/hv99xfkj Featuring drag and drop vector tools and a squiggly pen! #sillymaths #mathsky

    Vector-bet

  4. "Müssen wir da was ausrechnen?" fragen die Kindergeburtstagsgäste auf dem Weg ins MAINS.... um dann fast 2h später nicht nach Hause zu wollen.
    #mathsky #mains #heidelberg #math @ktstiftung