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I couldn't believe my eyes when I saw we don't have the Pfaffian implemented in Sage.
Attached is an implementation that computes it over any ring in the combinatorial way using perfect matchings. …
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Initial implementations of Weyl and Clifford algebras.
Depends on #16037
CC: @darijgr @sagetrac-sage-combinat
Component: **algebra**
Keywords: **days54**
Author: **Travis Scrimshaw**
Branch/C…
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Code for constructing the linear representation of k-regular sequences given by certain recurrence relations.
See also Meta ticket #21202.
Depends on #21295
Depends on #21203
CC: @dkrenn
Compon…
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Here is a small example illustrating the issue.
The memory footprint of the following piece of code grows indefinitely.
```
sage: K = GF(1
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This is to upgrade to PARI 2.13.x. https://repology.org/project/pari/versions
This new PARI release brings a lot of bug fixes,
new functionality, and speedups.
- [pari-2.13 release announcement](h…
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Since we have the very nice fan morphism class, we should use it to define toric morphisms of toric varieties.
A big part of the patch is porting the scheme morphisms / hom sets to new-style parent…
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Dear all,
I was recently trying to switch from Lagrange basis that is used for H1 to Legendre, and I seem to understand how to do that, but it looks like I need to change MFEM code for that and rebui…
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There is a new version 1.1 of our optional spkg for the computation of modular cohomology rings of finite p-groups. It can be installed by
```
> sage -i http://sage.math.washington.edu/home/SimonKi…
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At the moment when calling `.affine_hull`, either the polyhedron or the affine map can be returned. If both needed, parts need to be recomputed, so we extend the parameters to allow returning both a…
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We add a method `multivariate_interpolation` to the `MPolynomialRing_base` class.
Given a bound on the degree and either point/value pairs or a function, it returns the respective interpolation pol…