• @Chadus_Maximus@lemm.ee
    link
    fedilink
    5
    edit-2
    6 months ago

    Did Pythagoras even know about sin, cos and tan? I am reluctant to call A^2 +B^2 =C^2 trigonometry.

    Hipparchus, the alleged founder of trigonometry, was alive 350 years after Pythagoras (500BC to 150BC).

    • Lazz45
      link
      fedilink
      26 months ago

      Completely fair point, that I do not think I have the knowledge to speak on. On the Trigonometry Wikipedia page, he pops up a few times, and many trig identities are known as pythagorean identities. Perhaps its not fully trig, but was used as a basis to help discover trig? Without having the understanding pythagorus gave mathematicians regarding triangles, I would think it would be pretty hard to begin developing deeper math regarding said triangles

      • @Getawombatupya@aussie.zone
        link
        fedilink
        26 months ago

        Squaring using 3+4=5 is one of the oldest relationships used by masons. don’t need a ruler, just a piece of string or straight edge. Pythagoras described the relationship on paper