pe_beta_to_phi |
Calculates the geographic latitude from the authalic latitude
double pe_beta_to_phi (double e2, double beta);
e2 | Eccentricity squared of the spheroid |
beta | Authalic latitude (measured in radians) of the point |
This function is the inverse of pe_phi_to_beta; pe_beta_to_phi(e2, pe_phi_to_beta(e2, phi)) is approximately equal to phi.
Geographic latitude (measured in radians) of the point