Hi Christopher,
On Sun, Dec 20, 2009 at 6:14 AM, Christopher Olah
wrote:
> PS. If your wondering why I'm doing this, have a look at
> http://christopherolah.wordpress.com/2009/12/19/formation-of-escape-time-fractals/
> , I'm making some really neat pictures of the formation of escape time
> fr
> The following is better. It is longer, but it will work even if n >=
> 1000, whereas the above will fail spectacularly due to Python's stack
> limit. Also, the following is a bit faster than the above:
>
> def compose(f, n, a):
> """
> Return f(f(...f(a)...)), where the composition occur
On Sat, Dec 19, 2009 at 11:53 AM, Robert Bradshaw
wrote:
> On Dec 19, 2009, at 11:14 AM, Christopher Olah wrote:
>
>> Greetings!
>>
>> I can't seem to figure out how (elegantly) to make a function that is
>> the repeated composite of another. eg. Suppose I have a function f,
>> how do I get f*f*f*
On Dec 19, 2009, at 11:14 AM, Christopher Olah wrote:
> Greetings!
>
> I can't seem to figure out how (elegantly) to make a function that is
> the repeated composite of another. eg. Suppose I have a function f,
> how do I get f*f*f*f...
>
> In math, I could just f^n,
One difficulty with supportin
Dear all,
How can I find an approximately closest vector
problem of Lattice in Sage (app. shortest v p can be solved by LLL)?
With regards,
Santanu
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Thanks.
2009/12/9 Martin Albrecht
> On Wednesday 09 December 2009, Santanu Sarkar wrote:
> > Dear all,
> > Suppose I have polynomials over rational(Q) field although coefficients
> > are integer.
> > I want to transform these polynomials over some finite field say GF(7).
>
> Try:
>
> sage: R.
Greetings!
I can't seem to figure out how (elegantly) to make a function that is
the repeated composite of another. eg. Suppose I have a function f,
how do I get f*f*f*f...
In math, I could just f^n, in normal lambda calculus, I'd just use n.f
(church numeral), but in sage the only way I could co
I currently have sage-4.2 installed on my lenovo netbook. In the past,
I have been able to successfully install sage binaries, but the latest
version 4.2.1 fails with the message
"ImportError: No module named _md5".
Checking web for similar errors suggests that this may simply
Hi Carlos,
there is a very good library to solve these partial differential equations in
C++, which I recommend you
you can google: dealII, which stands for "differential equations library II",
it is very general and with
a very wide range of applications
Regards
Jorge
From: ccordob...@gmail.
William Stein wrote:
> On Fri, Dec 18, 2009 at 11:53 PM, Thierry Dumont
> wrote:
>> Carlos Córdoba a écrit :
>>> Hi,
>>>
>>> I know this is not a general mathematical forum, but I hope you can help me.
>>> I have this PDE:
>>>
>>> \frac{dB}{dt} = F(x,y,z)B(x,y,z) - G(x,y,z)\nabla B(x,y,z)
>>>
>>>
I had hoped to work on integrating pydstool, and briefly corresponded
with the author. Unfortunately I have a lot of other projects that
have to take priority over that, so I haven't done anything of
substance.
The difficult thing, I think, is agreeing on how to merge the class
architecture of py
William Stein a écrit :
> On Fri, Dec 18, 2009 at 11:53 PM, Thierry Dumont
> wrote:
>> Carlos Córdoba a écrit :
>>> Hi,
>>>
>>> I know this is not a general mathematical forum, but I hope you can help me.
>>> I have this PDE:
>>>
>>> \frac{dB}{dt} = F(x,y,z)B(x,y,z) - G(x,y,z)\nabla B(x,y,z)
>>>
>
On Fri, Dec 18, 2009 at 11:53 PM, Thierry Dumont
wrote:
> Carlos Córdoba a écrit :
>> Hi,
>>
>> I know this is not a general mathematical forum, but I hope you can help me.
>> I have this PDE:
>>
>> \frac{dB}{dt} = F(x,y,z)B(x,y,z) - G(x,y,z)\nabla B(x,y,z)
>>
>> and I don't know how to solve it n
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