The documentation for 'rationalize' has some problems.
The examples show rationalize(0.1) => 1/10, though the *text *clearly and
correctly says that it is *not* 1/10.
Also, what is the point of unitfrac? This says "Example use", but doesn't
use rationalize at all.
-s
5.28.0
2012-09-10 10:33:40
i386-apple-darwin11.4.0
SBCL 1.0.55.0-abb03f9