On Jul 14, 2009, at 9:05 AM, Doug wrote:

> Hmm. I've also had trouble interpreting what assume() affects, and I'm
> glad to hear that I'm not the only one.  What Robert says here helps a
> lot, but is there anything written anywhere else that goes into a bit
> more detail?  I'm sure there's more to it than a missing filter on the
> output of solve.  e.g., that doesn't explain Neal's other example:
>
>> sage: assume(x == 1)
>> sage: bool(x == 1)
>> False
>
> I do a bunch of writing down equations, stating assumptions, and
> trying to prove inequalities.  Understanding what assume() does and
> does not do could make my job a lot easier!

I would look at maxima's manual on assume for more info.

- Robert



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