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### Describe the issue:
The following small script returns `nan+nanj` for `x`:
```python
import numpy as np
a = np.diag([1+0j, 1])
np.exp(0)
x = np.linalg.det(a)
```
Commenting out the `np…
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**Issue by [mogwai](https://github.com/mogwai)**
_Thursday Oct 22, 2020 at 18:16 GMT_
_Originally opened as https://github.com/hbredin/pyannote-audio-v2/issues/39_
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For testing inference and tr…
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Consider the following code:
```
import qutip
import matplotlib.pyplot as plt
b = qutip.Bloch()
b.show()
```
When run in a Jupyter notebook, as per the tutorial on http://qutip.org/docs/l…
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The tarball at http://qutip.org/downloads/4.5.0/qutip-4.5.0.tar.gz does not contain the file qutip/cy/openmp/src/zspmv_openmp.cpp which is needed when installing qutip with the --with-openmp option.
…
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When you'll open source, it will be advisable to have a license. There are [guides](https://docs.github.com/en/github/creating-cloning-and-archiving-repositories/creating-a-repository-on-github/licens…
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Dear all,
Does anybody have a code in python to calculate quantum discord for general two-qubit states?
Many thanks
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**Describe the bug**
`operator-ket`'s `superrep` is `None` at creation.
But `Qobj.__matmul__` set the `superrep` of the output to the one of the left `Qobj`.
Thus `super-operator @ operator-ket` re…
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```
from qutip import *
import numpy as np
#from mayavi import mlab
import matplotlib.pyplot as plt
b = Bloch()
pnt = [1/np.sqrt(3),1/np.sqrt(3),1/np.sqrt(3)]
b.add_points(pnt)
Bloch().add_p…
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Dear qutip admin,
I have a question related to the question about mesolve returning only final state. Here, I would like to ask how to save only the propagator matrix at the final time from qutip.p…
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Pre-Report Checklist
--------------------
- [x] I am running the latest version of mitiq
- [x] I checked to make sure that this bug has not already been reported
Issue Description
-----------…