KOSEKOMA 0138 - Parametric
surface F(u,v)
- Astroidal Torus 7/8 part
A parametric surface is a surface F(u,v)
in the Euclidean space R3 which is defined by a parametric equation with two
parameters u, v.
Parametric surface F(u,v) Astroidal Torus.
A surface of the rotation of an astroid is formed by an asteroid rotating
about any of two its axes Ox or Oz
x = (R + r cos(v)^3) cos(u)
y = (R + r cos(v)^3)
sin(u)
z = r sin(v)^3
u
= 0..2π; v = 0..(7/4)π