-
The calculation of 6-J symbols in the wigner module includes a look-up table that appears to make assumptions that certain inputs are integers, though they need not be. Thus many symbols, such as wign…
-
**Describe the bug**
While testing with `pytest-cov` we started noticing some failures due to an "internal" error. Digging deeper, it looks like somehow a shared object (.so) file has made its way …
-
It would be useful to add sympy symbolic expression compatibility to the FermionicOperator/other operators to allow for cases when the amplitude on the operators is unknown.
-
I want to know what following 9j symbol evaluates to
{ 3/2 3/2 1
2 2 2
1/2 1/2 1 }
A couple of online calculators say the value is around 0.048:
- http://www-stone.ch.cam.ac.uk/cgi-b…
-
Scipy changed where they keep the factorial function in version 1.3, which breaks "import fastpt".
The following is with the latest fast-pt release: 3.0.0:
```
$ python
Python 3.6.7 | packaged b…
-
Using the following MWE, the 6J-symbol cannot be calculated.
```
from sympy.physics.wigner import wigner_6j
Jgr = 2.0
Fg = 0.5
I = 1.5
Fe = 1.5
Jex = 3.0
print wign…
-
NaMaster can compute mode-coupling matrices for spin0-spin0, 0-2 and 2-2 correlations, which gives it a lot of flexibility to only compute whatever you need for a given problem. This can be a slight a…
-
When using the package wigner_9j from sympy.physics.wigner it gives wrong results for some specific wigner 9j symbols. The example given below does in fact only have integer or half-integer input and …
-
When using the package wigner_9j from sympy.physics.wigner it gives wrong results for some specific wigner 9j symbols. The example given below does in fact only have integer or half-integer input and …
-
Is there any chance SymPy will add support for [Wigner and Clebsch-Gordan symbols](http://docs.sympy.org/latest/modules/physics/wigner.html)?