Hi all,
this is an exciting topic, I hope it's still alive!
A common use case for me is to automatically generate high dimensional
symbolic ODEs (photonic circuit non-linear coupled mode equations).
One thing I have found is that lambdify does not easily allow for
efficiently re-using common su
:)
Best,
Nik
On Nov 5, 2014, at 11:20 PM, Robert Johansson wrote:
> Hi Nikolas
>
> Great to hear that you’re interested in finding a common framework for
> symbolic quantum mechanics for QNET and the sympy quantum module! I think
> both projects would benefit from this.
examples for the sympy.strategies module?
Thanks,
Nikolas
On Nov 5, 2014, at 11:41 AM, Francesco Bonazzi wrote:
> Concerning pattern matching and term rewriting, there is some work by Matthew
> Rocklin as separate modules (i.e. unrelated to the standard pattern matcher
> in s
to
sympy.physics(.quantum)
Then I could make QNET only contain the actual component models as well
methods for parsing circuit definition files, etc.
@Brian and Robert, if you two had time to offer your input, that would be
very highly appreciated.
Thanks!
Nikolas
On Tuesday, Novemb
ht
be the last release of QNET that still features the general purpose quantum
operator algebra code).
Thanks!
Nikolas
[1] QNET: http://mabuchilab.github.io/QNET/
[2] SLH models and networks of quantum optical systems
http://arxiv.org/abs/0707.0048
[3] QuTiP: http://qutip.org/
--
You r
, Chris Smith wrote:
> On Thu, Sep 13, 2012 at 6:52 AM, nikolas wrote:
>> Follow-up: I think I have found a way that works.
>> I guess if one is interested in expanding about 0, one can simply do
>>>>> f = x + 5 * x**3
>>>>> coeffs = reversed(series(f, x,
= 0, I can substitute x->x0 + x1 and expand in
orders of x1.
If this is a bad way to do it, please let me know!
Thanks,
Nikolas
On Thursday, September 13, 2012 9:42:30 AM UTC+9, nikolas wrote:
>
> Hey guys,
>
> for a series expansion of some function f(x) about some point x0
get the actual
coefficient...
Is there some other way to achieve this functionality easily? It would seem
that under the hood the machinery to do all this would already be in
place...
Thanks!
Nikolas
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&q
ts are needed and after
reading your second post, I will most likely use "solve" anyway.
Once again: Thanks for all the clarification and your little
walkthrough of interesting functions/methods!
Best regards,
Nikolas Tautenhahn
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e a quick way to get (for example)
(a-4)*w1 + 3*w3 - q
from arrays/matrices like [a-4, 0, 3, -1] and [w1,w2,w3,q]?
I.e. how can formulas be built dynamically? Unfortunately, I couldn't
find this in the docs...
Best regards,
Nikolas Tautenhahn
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Hi Brian,
I'm not sure to have completely understood the problem, but would a
nested structure such as
x if x < 0 else (2*x if x > 1 else (...))
be useful for your purpose?
Cheers,
Nikolas
Am 05.03.2010 um 20:31 schrieb Brian Granger:
Hi,
I have been working on Piecewise and
Hi Ondrej,
Am 31.01.2010 um 08:43 schrieb Ondrej Certik:
...
I run you example and got a figure (attached). Nice!
So looking at the source code, here is the hamiltonian:
hamilton_operator = sum((ba.Ket(basis_states[i]) *
ba.Bra(basis_states[(i + 1) % len(basis_states)]) for i in
xrange(len(ba
ten some lengthy doc-strings to explain things :)
As of yet it does not support sympy, but if I'm not mistaken, it
should be very easy to extend it such that scalar multiplication with
sympy expressions becomes possible.
Enjoy,
Nikolas
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determined and should be evaluated (as efficiently as
possible). I understand of course that this is a bit specialized.
Nikolas
Am 27.01.2010 um 23:47 schrieb Aaron S. Meurer:
If I understand you correctly, it is related to this:
http://code.google.com/p/sympy/issues/detail?id=16
Symbols with
large array
containing millions of entries.
Any ideas concerning this would be greatly appreciated :)
Nikolas
Am 28.01.2010 um 08:51 schrieb smichr:
On Jan 28, 3:44 am, Nikolas Tezak wrote:
Hi,
I am wondering if it were in principle possible to create subclass of
Symbol, that could h
try to
implement it myself, but maybe some of you already know of some reason
why this would not work (efficiently).
Nikolas
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To u
integrate it, but I am working on that
as well.
Nikolas
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