// To the best of my knowledge this code is correct.
// If you find any errors or problems please contact
// me using zunzun@zunzun.com or the feedback form.
// James
#include <math.h>
// Fitting target is lowest sum of squared (SSQ) absolute error (traditional)
double TanC_Radians_WO_model(double x_in)
{
double temp;
temp = 0.0;
// coefficients
double a = 7.3383525433550612E-01;
double b = 8.6390150034495235E-03;
double c = -4.0051310883951308E+00;
double d = 8.8798823255401194E-01;
temp = a * tan(b * x_in + c) + d;
return temp;
}