Hi,
I know this problem can be treated correctly as above. The example
given here is just to say that using "diff" has to be more careful
since
diff(f,x,y).subs([(x, a), (y,b)])
may be not equal to $lim_{(x,y)\to(a,b)} f(x,y)$.
Thanks,
cch
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Hi Stefan,
On Wed, Apr 7, 2010 at 10:25 AM, Stefan Neculai
wrote:
> A draft of my proposal is attached.
>
> Could you tell me what do you think about it?
thanks for the proposal. I suggest you submit it, both for PSF and
PSU, as you can edit it later on.
Then I have some suggestions for further
A draft of my proposal is attached.
Could you tell me what do you think about it?
--
Many thanks,
Stefan
On Wed, Apr 7, 2010 at 12:13 AM, Ondrej Certik wrote:
> On Tue, Apr 6, 2010 at 3:54 PM, Stefan Neculai
> wrote:
> > One possible method for solving inequalities like q<0 ( where q is a
> >
You can pass [(term, item), …] pairs (dict.items()) to subs to make them go in
order:
In [4]: f(x, y).subs([(x, z), (z, 0)])
Out[4]: f(0, y)
Aaron Meurer
On Apr 7, 2010, at 12:51 AM, Renato Coutinho wrote:
> Hi,
>
>> $f(x,y)=(x^3*y-y^3*x)/(x^2+y^2$
>> for $(x,y)\nq(0,0) and $f(0,0)=0$
>>
>>
Hi,
On Wed, Apr 07, 2010 at 03:28:20AM -0700, smichr wrote:
> When you use the deep option for processing expressions, what is the
> expectation? I would think that "deep" means processing arguments of
> an expressions arguments, but this is not apparently what is meant
> since, for example, the m
When you use the deep option for processing expressions, what is the
expectation? I would think that "deep" means processing arguments of
an expressions arguments, but this is not apparently what is meant
since, for example, the multiplied arguments of an Add's arguments are
currently "walked" when
