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Every SageObject has a parent by #10962, possibly its own type. But that doesn't mean that `P(P(x))` returns `P(x)`, or even succeeds:
```
sage: Sequence([plot(sin)])
------------------------------…
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Hi, I noticed that the `default_sequence_name` method raises an error when the table has composite primary key.
### ActiveRecord version:
7.1.4
### Error message:
```
can't quote Array
```
…
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### 0-1背包问题
` Arrays.stream(array).sum();`
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I don't even:
```
sage: b = VectorSpace(QQ,3).basis()
sage: b += ["Hello, world!"]
sage: VectorSpace(QQ,3).basis()
[
(1, 0, 0),
(0, 1, 0),
(0, 0, 1),
'Hello, world!'
]
```
See also #19251.
CC: @…
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I think this issue is related to #304, because it's about handling passwords containing backslahes or percent signs.
This issue however only happens when using the `--tomb-pwd` (and therefore the `…
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**Is your feature request related to a problem? Please describe.**
Some terminals offer the ability to report pixel coordinates of mouse events along with the character coordinate. I want to make a U…
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I found `conditional_distribution_similarity` implementation via https://github.com/FenTechSolutions/CausalDiscoveryToolbox/blob/master/cdt/causality/pairwise/CDS.py
The method seems very interesti…
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Loading lambda and, for example, lists library:
```
$ scryer-prolog -f
?- use_module(library(lambda)).
true.
?- use_module(library(lists)).
true.
```
Through "one unification", so t…
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@zhixuhao I am getting "ZeroDivisionError: integer division or modulo by zero"
Error:
`ZeroDivisionError Traceback (most recent call last)
in ()
204 model = unet()
…
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This patch implements change_ring() in PolynomialSequence to make it easier if someone wants to change the polynomials to be defined over the new polynomial ring (e.g. polynomial ring with different…