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hypot, hypotf—distance from originSynopsis
#include <math.h> double hypot(double x, double y); float hypotf(float x, float y);
Description
hypot calculates the Euclidean distance
sqrt(x*x + y*y)
between the origin (0,0) and a point represented by the
Cartesian coordinates (x,y). hypotf differs only
in the type of its arguments and result.
Returns
Normally, the distance value is returned. On overflow,
hypot returns HUGE_VAL and sets errno to
ERANGE.
Portability
hypot and hypotf are not ANSI C.