Freya Holmérhey did you know the roots of a cubic polynomial can be visualized using an equilateral triangle?
🔵 vertices are roots
🔴 the incenter is the inflection point
🟢 the incircle boundaries are the local minima/maxima
Dag Ågren ↙︎↙︎↙︎@acegikmo Wow, that is great!
That makes it much more clear why solutions to cubic polynomials involve trigonometric functions!
@acegikmo Like, this otherwise absolutely mysterious code: https://github.com/erich666/GraphicsGems/blob/master/gems/Roots3And4.c#L120
