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Synopsis:
    #include <math.h>
    double pow( double x, double y );

Description:
    The  pow function computes x raised to the power y.  A domain error
    occurs if x is zero and y is less than or equal to 0, or if x is
    negative and y is not an integer.  A range error may occur.

Returns:
    The  pow function returns the value of x raised to the power y.  When
    the argument is outside the permissible range, the  matherr function is
    called.  Unless the default  matherr function is replaced, it will set
    the global variable  errno to  EDOM, and print a "DOMAIN error"
    diagnostic message using the  stderr stream.

See Also:
    exp, log, sqrt

Example:
    #include <stdio.h>
    #include <math.h>

    void main()
      {
        printf( "%f\n", pow( 1.5, 2.5 ) );
      }

    produces the following:

    2.755676

Classification:
    ANSI

Systems:
    All