On Mon, Mar 16, 2015 at 3:47 AM, Aaron Meurer <[email protected]> wrote:
> The main design difference with the new assumptions is that the
> assumptions are stored separate from the expressions, like
> Q.positive(x). I would not recommend using them unless you know what
> you are doing, though, because currently almost nothing in SymPy
> actually looks at them.

Thanks Aaron.

I roughly understand why assumptions are needed. In my mind: so that
sympy knows what the numerical values the symbol can assume. Is that a
right way of thinking about it?

Is there a document somewhere describing assumptions in general - not
related to SymPy but in symbolic math that someone knows of?


Thanks,
Amit.


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