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# How to write quantum function transforms in PennyLane
How to write quantum function transforms in PennyLane | The latest release of PennyLane, version 0.17, contains a number of new features based …
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### Expected behavior
(after discussion with @Qottmann )
The problem is that `Sum.terms()` doesn't neatly re-package the coefficients but just puts them in a list. This is a problem since `Sum` an…
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### Expected behavior
I am trying to use the PyTorch interface to optimize a quantum circuit, and I have narrowed my bug down the the presence of the `PauliRot` gate. As an example, please see the…
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# How to start learning quantum machine learning
How to start learning quantum machine learning | If machine learning is interesting, quantum machine learning (QML) is twice as interesting. It’s...
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**Describe the bug**
When I run `!pip install pennylane-qiskit` in a new notebook it says the plugin is successfully installed. However when I run "qml.about()" none of the qiskit devices are install…
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# How to do measurements in PennyLane
When using PennyLane to design quantum circuits we need to consider both the sequence of gates that we want to apply and also the kind of output that we want to …
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### Expected behavior
When the expectation value of a Hermitian observable is measured using qml.shadow_expval(), a float value has to be returned. Ideally, it must return a value close to qml.expval…
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### Feature details
As the title suggests: `qml.compile` takes an argument `basis_set`, which is expected to be a sequence of operation _names_, i.e. strings.
If a user passes a sequence of PennyLan…
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### Expected behavior
Successful creation of a `KerasLayer`
### Actual behavior
`ValueError: Unrecognized keyword arguments passed to KerasLayer: {'dynamic': True}`
### Additional information
Thi…
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#### Issue description
After updating jax and mlir dependency chain to v0.4.28 [(PR#931)](https://github.com/PennyLaneAI/catalyst/pull/931), jax introduces new `_sin_lowering` and `_cos_lowering` wit…