NAME
    IEEESPAtan -- compute the arc tangent of number

SYNOPSIS
      x   = IEEESPAtan(  y  );
    d0                 d0

    single  x,y;

FUNCTION
    Compute arctangent of y in IEEE single precision

INPUTS
    y - IEEE single precision floating point value

RESULT
    x - IEEE single precision floating point value

BUGS

SEE ALSO

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