# defining vertices with a math formula? [duplicate]

Is there a way to define vertices of a curve with a math formula? I'm trying to do a lemniscate (a rose curve the two lobes, infinity sign). X=90*cos(b)*sqrt(cos(2*b)) y=90*sin(b)*sqrt(cos(2*b)) where b is the angle.

• – brockmann Jul 18 at 15:47