[racket] Am I Missing Something? [HtDP 31.3.1]

From: Matthew Flatt (mflatt at cs.utah.edu)
Date: Tue Jan 4 16:39:39 EST 2011

Ok, I see the problem, now. (When I tried earlier, I was confused about
what I should be looking for.)

Racket sets the x87 control word to use double precision instead of
extended precision. That setting apparently interferes with the pow()
C library function.

Mac library functions use SSE for floating point, so the x87 control
setting wouldn't matter for pow().

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