#include "f2c.h"

VOID pow_zz(r,a,b)
doublecomplex *r, *a, *b;
{
double logr, logi, x, y;
double log(), exp(), cos(), sin(), atan2(), cabs();

logr = log( cabs(a->r, a->i) );
logi = atan2(a->i, a->r);

x = exp( logr * b->r - logi * b->i );
y = logr * b->i + logi * b->r;

r->r = x * cos(y);
r->i = x * sin(y);
}