Transform from polar (or cylindrical) coordinates to Cartesian.
[x, y [, z]] = mathieu_pol2cart(theta, rho [, z])
polar angle.
polar radius.
(optional) polar height.
Cartesian x.
Cartesian y.
(optional) Cartesian z.
Transform from polar (or cylindrical) coordinates to Cartesian using the following formulas:
R.Coisson and G. Vernizzi, Parma University
X. K. Yang
2011 - DIGITEO - Michael Baudin
N. O. Strelkov, NRU MPEI