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Operations on general density matrices is would be useful. Are there any blockers that makes this infeasible?
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## Issue Description
Draw circuits with conditional gates. Currently, such attempt will raise a qiskit.extensions.exceptions.ExtensionError: 'Input matrix is not unitary.'
## Proposed Solution
…
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**Describe the bug**
The output of `ir.source` is missing the `stdgates.inc` file, which defines many common gates such as `cx`, `h`, and `x`. When attempting to import the output of `ir(circuit)…
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### Is your feature request related to a problem? Please describe.
Currently, conversion of HDR AVIF to JXR fails to retain correct luminosity.
To reproduce:
1. Export an HDR AVIF with the Te…
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Add the code to take a circuit and a list of pauli operators and output the required circuits and then a fitter to calculate the expectation value of those pauli operators. A limiting case of full sta…
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### Description
The current 'Groups' menu has a number of problems:
* Can't navigate to certain groups such as IESG, IETF LLC
* Splits up the various parts of an Area in to separate sections of the…
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[1] https://discuss.pytorch.org/t/how-can-i-extract-intermediate-layer-output-from-loaded-cnn-model/77301
[2] https://forums.fast.ai/t/pytorch-best-way-to-get-at-intermediate-layers-in-vgg-and-resnet…
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### What is the expected enhancement?
It may be helpful to specify more exactly a procedure for casting angle types to float types.
Angles are fixed-point numbers that represent a value in t…
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## Notes
* In light of discussions below and elsewhere, we have revised this proposal. Below is the original proposal as it stood prior to 4 April. A self-contained revision as of 6 April can be fo…
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Mathics *very nearly* supports [Pyodide](https://pyodide.org/en/stable/). I put together a quick demo of this in [marimo](https://marimo.io/), which uses pyodide to run Python notebooks entirely in a …