BSD 4_2 release

[unix-history] / usr / src / usr.lib / libF77 / z_log.c

/*
*      "@(#)z_log.c    1.1"
*/

#include "complex"

z_log(r, z)
dcomplex *r, *z;
{
double log(), cabs(), atan2();

r->dimag = atan2(z->dimag, z->dreal);
r->dreal = log( cabs( z->dreal, z->dimag ) );
}