If called with a single matrix argument then each row of c
represents the Cartesian coordinate (x, y, z).
cart2sph(x, y = NULL, z = NULL)Matrix with columns:
thetathe angle relative to the positive x-axis
phithe angle relative to the xy-plane
rthe distance to the origin (0, 0, 0)
x-coordinates or matrix with three columns
y-coordinates (optional, if x) is a matrix
z-coordinates (optional, if x) is a matrix
Kai Habel
David Sterratt
sph2cart, cart2pol,
pol2cart