moved the function cartesian outside gaussianQuadrature, and added documentation. Calculated ideal number of sample points for compute_coeffs_spherical. Added a _computeArray which will allow us to compute the density or potential from given numpy array coordinates.
moved the function cartesian outside gaussianQuadrature, and added documentation. Calculated ideal number of sample points for compute_coeffs_spherical. Added a _computeArray which will allow us to compute the density or potential from given numpy array coordinates.

jobovy/galpy,jobovy/galpy,jobovy/galpy,jobovy/galpy