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/* eispack/cdiv.f -- translated by f2c (version 20050501).
You must link the resulting object file with libf2c:
on Microsoft Windows system, link with libf2c.lib;
on Linux or Unix systems, link with .../path/to/libf2c.a -lm
or, if you install libf2c.a in a standard place, with -lf2c -lm
-- in that order, at the end of the command line, as in
cc *.o -lf2c -lm
Source for libf2c is in /netlib/f2c/libf2c.zip, e.g.,
http://www.netlib.org/f2c/libf2c.zip
*/
#ifdef __cplusplus
extern "C" {
#endif
#include "v3p_netlib.h"
/*< subroutine cdiv(ar,ai,br,bi,cr,ci) >*/
/* Subroutine */ int cdiv_(doublereal *ar, doublereal *ai, doublereal *br,
doublereal *bi, doublereal *cr, doublereal *ci)
{
/* System generated locals */
doublereal d__1, d__2;
/* Local variables */
doublereal s, ais, bis, ars, brs;
/*< double precision ar,ai,br,bi,cr,ci >*/
/* complex division, (cr,ci) = (ar,ai)/(br,bi) */
/*< double precision s,ars,ais,brs,bis >*/
/*< s = dabs(br) + dabs(bi) >*/
s = abs(*br) + abs(*bi);
/*< ars = ar/s >*/
ars = *ar / s;
/*< ais = ai/s >*/
ais = *ai / s;
/*< brs = br/s >*/
brs = *br / s;
/*< bis = bi/s >*/
bis = *bi / s;
/*< s = brs**2 + bis**2 >*/
/* Computing 2nd power */
d__1 = brs;
/* Computing 2nd power */
d__2 = bis;
s = d__1 * d__1 + d__2 * d__2;
/*< cr = (ars*brs + ais*bis)/s >*/
*cr = (ars * brs + ais * bis) / s;
/*< ci = (ais*brs - ars*bis)/s >*/
*ci = (ais * brs - ars * bis) / s;
/*< return >*/
return 0;
/*< end >*/
} /* cdiv_ */
#ifdef __cplusplus
}
#endif
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