Math Scalar Library
Programming Reference Manual C/C++
Version 1.1 DD-00003-011

7.11 sasecpi - Half-Cycle Arcsecant sec-1(x)/π

#include <msca.h> 
 
double sasecpi (double x); 
float  sasecpif(float x);

Given a value x this function computes the half-cycle arcsecant sec-1(x)/π .