BSD 4_1_snap release

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

/* Copyright (c) 1979 Regents of the University of California */

static char sccsid[] = "@(#)LN.c 1.4 6/10/81";

#include <math.h>

double
LN(value)

       double  value;
{
       if (value <= 0) {
               ERROR("Non-positive argument of %e to ln\n", value);
               return;
       }
       return log(value);
}