[unix-history] / usr / src / usr.bin / pascal / libpc / LN.c

/*-
 * Copyright (c) 1979, 1993
 *	The Regents of the University of California.  All rights reserved.
 *
 * %sccs.include.redist.c%
 */

#ifndef lint
static char sccsid[] = "@(#)LN.c	8.1 (Berkeley) %G%";
#endif /* not lint */

#include <math.h>

double
LN(value)

	double	value;
{
	if (value <= 0) {
		ERROR("Non-positive argument of %e to ln\n", value);
	}
	return log(value);
}
Commit	Line	Data
0d78ca85	1	/*-
8db0b741 KB	2	* Copyright (c) 1979, 1993
8db0b741 KB	3	* The Regents of the University of California. All rights reserved.
0d78ca85 KB	4	*
	5	* %sccs.include.redist.c%
	6	*/
c4c6b9d5	7
0d78ca85	8	#ifndef lint
8db0b741	9	static char sccsid[] = "@(#)LN.c 8.1 (Berkeley) %G%";
0d78ca85	10	#endif /* not lint */
c4c6b9d5	11
b8cbc6b2	12	#include <math.h>
c4c6b9d5 KM	13
	14	double
	15	LN(value)
	16
	17	double value;
	18	{
	19	if (value <= 0) {
86997b19	20	ERROR("Non-positive argument of %e to ln\n", value);
c4c6b9d5 KM	21	}
	22	return log(value);
	23	}