On Sat, Mar 21, 2009 at 6:24 PM, comer.dun...@gmail.com
wrote:
>
> Ondrej,
>
> Yes, the relativity.py example works. However, I want to do indicial
> tensor algebra and was hoping tensor.py is a start in that direction.
> The tensor.py included with the dist sympy-0.6.3 in examples is what I
Ah,
Ondrej,
Yes, the relativity.py example works. However, I want to do indicial
tensor algebra and was hoping tensor.py is a start in that direction.
The tensor.py included with the dist sympy-0.6.3 in examples is what I
hacked. I don't see a way to attach a file in posting. I would have
attached t
On Sat, Mar 21, 2009 at 2:04 PM, comer.dun...@gmail.com
wrote:
>
> Ondrej,
>
> I have taken the tensor.py script and have stripped out most of it,
> wanting to see just how far it gets before crashing. Here is what I
> have:
Which tensor.py have you taken?
>
>
> from sympy import exp, Symbol,
Ondrej,
I have taken the tensor.py script and have stripped out most of it,
wanting to see just how far it gets before crashing. Here is what I
have:
from sympy import exp, Symbol, sin, Rational, Derivative, dsolve
from sympy.core import Basic, Function
from sympy.matrices import Matrix
clas
>>
>> http://code.google.com/p/sympy/issues/detail?id=16
>
> I see. I am afraid that I am too new to this business to do much in
> the way of developing the indicial stuff. I would be very appreciative
> if you or the other developers in the know can get it done !!
Sure, it will definitely happe
On Mar 20, 2:34 pm, Ondrej Certik wrote:
> On Fri, Mar 20, 2009 at 6:58 AM, comer.dun...@gmail.com
>
> wrote:
> > Thanks for the suggestion. I have now looked at the relativity.py
> > file and believe it to be a reasonable start. Once I understand more
> > I will make some related changes an
On Fri, Mar 20, 2009 at 6:58 AM, comer.dun...@gmail.com
wrote:
> Thanks for the suggestion. I have now looked at the relativity.py
> file and believe it to be a reasonable start. Once I understand more
> I will make some related changes and let you know what I get. Another
Excelllent. Btw, th
Thanks for the suggestion. I have now looked at the relativity.py
file and believe it to be a reasonable start. Once I understand more
I will make some related changes and let you know what I get. Another
related area is general relativistic fluid dynamics for which sympy
hopefully can be useful
Further to Alan Bromborsky:
The book by Lazenby and Doran is outstanding. However, the formulation of
general relativity expressed there is not formally equivalent in all senses
to Einstein's relativity, I will have to re-read the papers but I'm pretty
sure it is possible to derive results from t
On Wed, Mar 18, 2009 at 3:19 PM, Alan Bromborsky wrote:
>
> Ondrej Certik wrote:
>> Hi Comer,
>>
>> On Wed, Mar 18, 2009 at 9:17 AM, comer.dun...@gmail.com
>> wrote:
>>
>>> I am interested in using Sympy but see on the web page that
>>> implementing tensors is rather low on the list of interested
Ondrej Certik wrote:
> Hi Comer,
>
> On Wed, Mar 18, 2009 at 9:17 AM, comer.dun...@gmail.com
> wrote:
>
>> I am interested in using Sympy but see on the web page that
>> implementing tensors is rather low on the list of interested
>> additional features. Can the developers give some indicatio
Hi Comer,
On Wed, Mar 18, 2009 at 9:17 AM, comer.dun...@gmail.com
wrote:
>
> I am interested in using Sympy but see on the web page that
> implementing tensors is rather low on the list of interested
> additional features. Can the developers give some indication as to
> when tensor algebra will
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