SQRT(3M)                                                 SQRT(3M)



     NAME
          cbrt, sqrt - cube root, square root

     SYNOPSIS
          #include <math.h>

          double cbrt(x)
          double x;

          double sqrt(x)
          double x;

     DESCRIPTION
          Cbrt(x) returns the cube root of x.

          Sqrt(x) returns the square root of x.

     DIAGNOSTICS
          Sqrt(negative) returns NaN.

     ERROR (due to Roundoff etc.)
          Cbrt is accurate to within 0.7 ulps.
          Sqrt on a VAX is accurate to within 0.501 ulps.
          Sqrt on a machine that conforms to IEEE 754 is correctly
          rounded in accordance with the rounding mode in force; the
          error is less than half an ulp in the default mode
          (round-to-nearest).  An ulp is one Unit in the Last Place
          carried.

     SEE ALSO
          math(3M)

     AUTHOR
          W. Kahan

     ORIGIN
          MIPS Computer Systems


















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