On 9/5/11 5:40 PM, rjf wrote:
One relatively clean resolution of some of the problems
is to replace every float -- on input -- to
an equivalent rational.
It seems like we've had some big problems with this, in that maxima will
sometimes simplify things because it assumes an exact rational number
was entered, when in reality, an approximate number was entered [1].
Maybe a more correct "clean" resolution is to convert every float to a
rational interval, or a float interval, and do interval arithmetic? Of
course, that can get really nasty too...
Jason
[1] See http://trac.sagemath.org/sage_trac/ticket/2400 for example, or
http://trac.sagemath.org/sage_trac/search?q=keepfloat
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