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#include "f2c.h"
#ifdef KR_headers
extern double log(), f__cabs(), atan2();
VOID c_log(r, z) complex *r, *z;
#else
#undef abs
#include "math.h"
extern double f__cabs(double, double);
void c_log(complex *r, complex *z)
#endif
{
double zi, zr;
r->i = atan2(zi = z->i, zr = z->r);
r->r = log( f__cabs(zr, zi) );
}
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