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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 run_erfcx.c:
* Interactive evaluation of erfcx(x).
*
* Copyright:
* (C) 2025 Forschungszentrum Jülich GmbH
*
* Licence:
* Public domain.
*
* Author:
* Joachim Wuttke, Forschungszentrum Jülich, 2025
*
* Website:
* http://apps.jcns.fz-juelich.de/libcerf
*/
#include <stdio.h>
#include <stdlib.h>
#include "cerf.h"
int main( int argc, char **argv )
{
if( argc!=2 ){
fprintf( stderr, "usage:\n" );
fprintf( stderr, " run_erfcx x\n" );
exit(-1);
}
double x = atof( argv[1] );
double y = erfcx(x);
printf( "%21.16g %21.16g\n", x, y);
return 0;
}
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