/* nag_complex_hankel (s17dlc) Example Program. * * Copyright 2002 Numerical Algorithms Group. * * Mark 7, 2002. */ #include #include #include #include int main(void) { Integer exit_status = 0; Complex z, cy[2]; double fnu; const Integer n = 2; Integer m, nz; char nag_enum_arg[40]; Nag_ScaleResType scal; NagError fail; INIT_FAIL(fail); /* Skip heading in data file */ scanf("%*[^\n]"); printf("nag_complex_hankel (s17dlc) Example Program Results\n"); printf("Calling with n = %ld\n", n); printf("m fnu z scal cy[0]" " cy[1] nz\n"); while (scanf(" %ld %lf (%lf,%lf) %s%*[^\n] ", &m, &fnu, &z.re, &z.im, nag_enum_arg) != EOF) { /* nag_enum_name_to_value(x04nac). * Converts NAG enum member name to value */ scal = (Nag_ScaleResType) nag_enum_name_to_value(nag_enum_arg); /* nag_complex_hankel (s17dlc). * Hankel functions H_(nu+a)^(j)(z), j = 1,2, real a >= 0, * complex z, nu = 0,1,2,... */ nag_complex_hankel(m, fnu, z, n, scal, cy, &nz, &fail); if (fail.code != NE_NOERROR) { printf("Error from nag_complex_hankel (s17dlc).\n%s\n", fail.message); exit_status = 1; goto END; } if (fail.code == NE_NOERROR) printf("%ld %7.4f (%7.3f,%7.3f) %-14s (%7.3f,%7.3f) " "(%7.3f,%7.3f) %ld\n", m, fnu, z.re, z.im, nag_enum_arg, cy[0].re, cy[0].im, cy[1].re, cy[1].im, nz); else { printf("Error from nag_complex_hankel (s17dlc).\n%s\n", fail.message); exit_status = 1; goto END; } } END: return exit_status; }