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Tip revision: 3540ef16c19f2260e347a679cb27d44ba734bec6 authored by Guido van Rossum on 31 August 2007, 15:07:53 UTC
Tagging for release of Python 3.0a1.
Tip revision: 3540ef1
hypot.c
/* hypot() replacement */

#include "pyconfig.h"
#include "pyport.h"

double hypot(double x, double y)
{
	double yx;

	x = fabs(x);
	y = fabs(y);
	if (x < y) {
		double temp = x;
		x = y;
		y = temp;
	}
	if (x == 0.)
		return 0.;
	else {
		yx = y/x;
		return x*sqrt(1.+yx*yx);
	}
}
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