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hypot, hypotf
[distance from origin]

SYNOPSIS

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

DESCRIPTION

hypot calculates the Euclidean distance: 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.

You can change the error treatment with matherr.

COMPLIANCE

hypot and hypotf are not ANSI C.