[unix-history] / usr / src / usr.bin / f77 / libF77 / c_log.c

/*
 * Copyright (c) 1980 Regents of the University of California.
 * All rights reserved.  The Berkeley software License Agreement
 * specifies the terms and conditions for redistribution.
 *
 *	@(#)c_log.c	5.1	%G%
 */

#include "complex"

c_log(r, z)
complex *r, *z;
{
double log(), cabs(), atan2();

r->imag = atan2(z->imag, z->real);
r->real = log( cabs(z->real, z->imag) );
}
Commit	Line	Data
e88efc3a	1	/*
1c3db5b1 RE	2	* Copyright (c) 1980 Regents of the University of California.
	3	* All rights reserved. The Berkeley software License Agreement
	4	* specifies the terms and conditions for redistribution.
	5	*
	6	* @(#)c_log.c 5.1 %G%
e88efc3a DW	7	*/
	8
	9	#include "complex"
	10
	11	c_log(r, z)
	12	complex r, z;
	13	{
	14	double log(), cabs(), atan2();
	15
	16	r->imag = atan2(z->imag, z->real);
	17	r->real = log( cabs(z->real, z->imag) );
	18	}