multivariable limits ?

[Laurent]

Hello

I want to use Sage in order to check some of my computations in
preparing a first year course of math.

It seems that the method f.limit does not compute limits for two
variables functions.

How can I do ?

thanks
Have a good night
Laurent

[kcrisman]

Dear Laurent,

Sage uses Maxima for such computations - see
http://maxima.sourceforge.net/docs/manual/en/maxima_18.html#Item_003a-limit
As far as I know, Maxima does not implement such limits.

It looks like Maple does and Mathematica doesn't, from a brief online
check - not surprising, I think. However, I think you'd agree that
multivariable limits are *much* harder to discuss existence of in
general.

Despite various warning messages about Mercurial repositories, I was
able to create http://trac.sagemath.org/sage_trac/ticket/9849 for this
issue.

- kcrisman