4.2BSD/usr/src/usr.lib/libF77/d_lg10.c

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/*
 *	"@(#)d_lg10.c	1.1"
 */

#define log10e 0.43429448190325182765

double d_lg10(x)
double *x;
{
double log();

return( log10e * log(*x) );
}