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/* Library libcerf:
* Compute complex error functions, based on a new implementation of
* Faddeeva's w_of_z. Also provide Dawson and Voigt functions.
*
* File voigttest.c:
* Test the Voigt function
*
* Copyright:
* (C) 2013 Forschungszentrum Jülich GmbH
*
* Licence:
* ../LICENSE
*
* Authors:
* Joachim Wuttke, Forschungszentrum Jülich, 2013
*
* Website:
* http://apps.jcns.fz-juelich.de/libcerf
*
* Revision history:
* ../CHANGELOG
*
* More information:
* man 3 voigt
*/
#ifdef __cplusplus
#include <cassert>
#else
#include <assert.h>
#endif
#include "cerf.h"
#include "testtool.h"
int main()
{
result_t result = {0, 0};
// expected results analytically determined:
RTEST(result, 1e-15, voigt(0, 1, 0), 1 / sqrt(6.283185307179586));
RTEST(result, 1e-15, voigt(0, 0, 1), 1 / 3.141592653589793);
RTEST(result, 1e-13, voigt(0, .5, .5), .41741856104074);
// expected results obtained from scipy.integrate:
RTEST(result, 1e-12, voigt(1, .5, .5), .18143039885260323);
RTEST(result, 1e-12, voigt(1e5, .5e5, .5e5), .18143039885260323e-5);
RTEST(result, 1e-12, voigt(1e-5, .5e-5, .5e-5), .18143039885260323e5);
RTEST(result, 1e-12, voigt(1, .2, 5), 0.06113399719916219);
RTEST(result, 1e-12, voigt(1, 5, .2), 0.07582140674553575);
printf("%i/%i tests failed\n", result.failed, result.total);
return result.failed ? 1 : 0;
}
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