On Dec 11, 2007 7:08 PM, Ondrej Certik <[EMAIL PROTECTED]> wrote:
> Dear Suresh,
>
> > Dear all,
> >
> > Let's say I have an expression:
> > 1/(a+b)
> >
> > I want to be able to simplify this to 1/a if we know that a is much,
> > much greater than b. Is there a way to achieve this already in sympy.
> > If not, I think this would be a nice feature for engineering people
> > who would always be making some approximations and get intuitions from
> > the simplified expressions :)
>
> Thanks very much for the idea. I created an issue for that:
>
> http://code.google.com/p/sympy/issues/detail?id=488
>
> Basically, SymPy doesn't have a very robust assumption model, we are
> still investigating how this could be done. This will be an assumption
> "b>>a".

Actually "b << a".

O.

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