pe_beta_to_phi

Calculates the geographic latitude from the authalic latitude

Usage syntax

double pe_beta_to_phi (double e2, double beta);

Parameters
e2 Eccentricity squared of the spheroid
beta Authalic latitude (measured in radians) of the point
Description

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.

Returns

Geographic latitude (measured in radians) of the point