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HYPOTIndexNAMEhypot, hypotf, hypotl - Euclidean distance functionSYNOPSIS#include <math.h> double hypot(double x, double y); float hypotf(float x, float y); long double hypotl (long double x, long double y); DESCRIPTIONThe hypot() function returns sqrt(x*x+y*y). This is the length of the hypotenuse of a right-angle triangle with sides of length x and y, or the distance of the point (x,y) from the origin.CONFORMING TOSVID 3, BSD 4.3, C99. The float and the long double variants are C99 requirements.SEE ALSOsqrt(3), cabs(3)
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