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

15.1 sexspi - Half-Cycle Exsecant exs(πx)

#include <msca.h> 
 
double sexspi (double x); 
float  sexspif(float x);

Given a value x this function computes the half-cycle exsecant, exs(πx)  .