🚀 go-pugleaf

> I am trying to use pow(3M) to raise a positive integer value to a negative
> integer value.  For example, the 12th root of 2 --> 2 ^ (-12) --> pow(2,-12).
> 
> Any ideas why this is happening?  Have I made some fundamental blunder?
> Has pow(3M) made some fundamental blunder?

    You have made two fundamental blunders.  First, the arguments to pow() are
doubles, so the correct way to all the function is:

	pow(2.0, -12.0);

   The second blunder is that 2 ^ -12 == 1 / (2 ^ 12), NOT 12th-root 2!  The
code for that would be:

	pow(2.0, 1.0 / 12.0);

    I suggest using 2^-12 would generate a useless musical scale (the only
practical application of 12-th root 2 I know about).

					John Worley
					hplabs!dana!worley