A folium of Descartes.
0 = x3 + -3xy + y3
α3 + -3αβ + β3
JSON: { "3,0": "1", "1,1": "-3", "0,3": "1" }
calc: x^3 + -3*x*y + y^3
GLSL: x*x*x+-3.0*x*y+y*y*y