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Hey @kpchamp , we were refactoring a lot of pysindy and built some infrastructure to maintain backwards compatibility around sparse inputs. We're looking to provide documentation as to why they're us…
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There is a current trend to develop Cython libraries as separate packages, rather than as part of Sage.
Many of these libraries take numbers of various kinds as input or produce them as output.
It…
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The following quickly eats up memory:
```
sage: for D in xrange(2,2**32):
....: QuadraticField(-D);
....:
```
(This is with 5.10.rc0)
__Problem analysis__
The quadratic field is created with …
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I'm rather disappointed by this patch. Or I'm pleasantly surprised by Python, I don't know. I expected a much better speedup.
```
sage: g = graphs.RandomGNP(50,.7)
sage: import networkx
sage: gn = …
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Upgrade the optional arb spkg to version 2.6.0.
Tar.gz file at [https://www.math.aau.at/user/cheuberg/sage/arb-2.6.0.tar.gz](https://www.math.aau.at/user/cheuberg/sage/arb-2.6.0.tar.gz)
CC: @mezz…
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John Palmieri reported this in sage-3.4.alpha. I is still here in rc0:
```
File "/home/jaap/downloads/sage-3.4.alpha0/devel/sage/doc/en/bordeaux_2008/method_of_graphs.rst", line 25:
sage: t2 =…
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The goal of this ticket is to enumerate integer vectors up to the action of a Permutation Group.
This will produced a Parent : infinite enumerated set whose element are integer vectors (as list of …
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At the current stage, the Pfaffian is computed using the definition by perfect matchings. This is tremendously demanding.
According to https://arxiv.org/abs/2008.04247, there is an algorithm simila…
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[Here](http://wiki.cython.org/ReleaseNotes-0.13) are the release notes for [Cython](http://www.cython.org/) 0.13.
Apply
* http://sage.math.washington.edu/home/robertwb/cython/cython-0.13.p1.spkg
…
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Here is some initial shot at constructing toric varieties "by name". It might be useful to write doctests for the toric varieties. We construct the fans from generating cones and store them in a dic…