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I forgot how to construct matrix entries with a lambda so I did:
```
In [1]: import sympy as sm
In [4]: sm.Matrix?
Init signature: sm.Matrix(*args, **kwargs)
Docstring: Matrix implementati…
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## Description of bug / unexpected behavior
When creating the typical representation of the ellipse with a rotating point and segments to the focuses, the animation do not finish over the horizon…
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It seems like Jupyter notebooks allow a whole set of `_repr_XXX_` methods, which, when `display()` is called, are tried in order depending on the abilities of the notebook. E.g.
```
# Quick hack t…
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At the moment I don't know if there is wide user interest, but feel free to contribute here.
See initial discussion with @timholy in https://github.com/JuliaDiff/AbstractDifferentiation.jl/pull/134
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Can you explain how does the pw2z2pack code perform the separation of Wannier eigenstates into two symmetry sectors or give me any reference to understand how to perform such separation? (The physicis…
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As of now, the group Lasso regularizer is not compatible with pytrees, but only with arrays.
The fundamental difference is that when we pass a model matrix in array format, parameters are grouped ba…
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Currently we sort the IPA column such that special characters get ordered out of expected order. It doesn't look like there's an obvious way to get postgres to sort by a custom order that isn't defin…
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In general I think this is really awesome work and will do as much as I can (within reason) to promote it.
That said, I suspect it should be possible to take advantage of more widely used JSX proce…
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```res
type t0 = {x?: int}
let a = None
let fa = v =>
switch v {
| Some(v) => {x: v}
| None => {x: ?a}
}
Js.log(fa(a)) // {}
let b = None
let fb = v =>
switch v {
| Some(…
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BPO | [34856](https://bugs.python.org/issue34856)
--- | :---
Nosy | @gvanrossum, @rhettinger, @terryjreedy, @serhiy-storchaka, @tirkarthi
PRs | python/cpython#9647
*Note: these values reflect the sta…