JSXGraph Implicit Curve Demo
abs(x) + abs(y) - 6
x^3 + y - 4
x^4 + y^4 - x*y - 8
x^2 + y^2 - 4
9*(x - y)*(x - y - x^2) - 3*x^4 - y^4
6*x^2*(1 - x^2) * (1 - 2*x^2)^2 - y^2
x^3 - 2*x*y + y^3
x^4 - x^2*y + y^3
x^2 - y^3
2*y^2 + x^2 - 4
2*y^2 - x^2 - 4
y^2 -2 * x
-y^2 + x^3 - 2*x
-y^2 + x^3 - 1*x + 1
-y^2 + x^3 - 0*x + 1
(x^2 + (y+1)^2 - 2)^2
Plot it