vertices = dimension1:1000 dimension2:72

u = from 0 to (20*PI) dimension1
v = from 0 to (2*PI) dimension2

m = -1/20
k = 3

a = 1
b = 1

e = pow(E, m*u)
w = (a + b*cos(v))*e

x = w*cos(u)
z = w*sin(u)
y = (k*a + b*sin(v))*e