7.12.7.3 The hypot functions

Synopsis

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#include <math.h>
double hypot(double x, double y);
float hypotf(float x, float y);
long double hypotl(long double x, long double y);

Description

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The hypot functions compute the square root of the sum of the squares of x and y, without undue overflow or underflow. A range error may occur.

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Returns

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The hypot functions return (sqrt)(x² + y²).