I am working with hyperspheres and would like to use healpy to create the three angles ksi, theta, phi for a nside hypersphere.
How do I do that considering that these are the four coordinates of this hypersphere:
u1=sin(ksi)sin(theta)cos(phi)
u2=sin(ksi)sin(theta)sin(phi)
u3=sin(ksi)cos(theta)
u4=cos(ksi)
Thanks,
Marco
