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

12.14 sahacpi - Half-Cycle Archavercosine hac-1(x)/π

#include <msca.h> 
 
double sahacpi (double x); 
float  sahacpif(float x);

Given a value x this function computes the half-cycle archavercosine of x , hac-1(x)/π .