HYPOT(3) BSD Library Functions Manual HYPOT(3)

NAME
     hhyyppoott - euclidean distance function

SYNOPSIS
     ##iinncclluuddee <>

     double
     hhyyppoott(double x, double y);

     long double
     hhyyppoottll(long double x, long double y);

     float
     hhyyppoottff(float x, float y);

DESCRIPTION
     The hhyyppoott() function computes the sqrt(x*x+y*y) without undue overflow or
     underflow.

SSPPEECCIIAALL VVAALLUUEESS
     hhyyppoott(x, y) , hhyyppoott(y, x) , and hhyyppoott(x, -y) are equivalent.

     hhyyppoott(x, +-0) is equivalent to ffaabbss(x).

     hhyyppoott(+-infinity, y) returns +infinity even if y is a NaN.

SEE ALSO
     cabs(3), math(3), sqrt(3)

STANDARDS     The hhyyppoott() function conforms to ISO/IEC 9899:1999(E).

4th Berkeley Distribution      January 28, 2003      4th Berkeley Distribution