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     HYPOT(S)                  UNIX System V                  HYPOT(S)



     Name
          hypot - euclidean distance function

     Syntax
          #include <math.h>

          double hypot (x, y)
          double x, y;

     Description
          hypot returns

               sqrt(x * x + y * y),

          taking precautions against unwarranted overflows.

     See Also
          matherr(S)

     Diagnostics
          When the correct value would overflow, hypot returns HUGE
          and sets errno to ERANGE.

          These error-handling procedures may be changed with the
          function matherr(S).

     Standards Conformance
          hypot is conformant with:
          AT&T SVID Issue 2, Select Code 307-127;
          and The X/Open Portability Guide II of January 1987.

                                             (printed 6/20/89)