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Currently the type of a Singular matrix over Q is smatrix{spoly{n_Q}}:
```
R, (x, y) = PolynomialRing(QQ, ["x", "y"])
I = Ideal(R, x, y)
M = Singular.Matrix(I)
typeof(M)
```
But the ty…
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Singular 4.1.1 is out.
The changes for it can be found at:
https://www.singular.uni-kl.de/index.php/news/release-of-singular-4-1-1.html
The tarball:
http://www.mathematik.uni-kl.de/ftp/pub/Math/Si…
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I've run across some polytopes that can't be constructed in finite time because computing the facet and vertex adjacencies takes forever. Just computing the reduced H/V-representation takes just a f…
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I don't manage to define a fraction in a quotient ring, it is looking for a gcd which does not exist, and would anyway probably not make sense for general quotient rings. Is there a way to not require…
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The new version improves elimination to some extent, comes with a cleaner API and has an option to suppress SSE instructions.
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## Note to the release managers
**Apply only [m4ri_new_version.v2…
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Only fixed modulus p-adic numbers should be hashable, all others can not implement a reasonable hash function. Currently some of them do which can cause horrible bugs:
```
sage: @cached_function
..…
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Right now PolyBoRi relies on scons (which is still Python 2 only), and has some Python 2 specific syntax in its bindings. These issues will need to be resolved before Sage can support Python 3.
On …
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This is to support Python 3.10, which was released on 2021-10-04.
https://docs.python.org/3.10/whatsnew/changelog.html#changelog
Thanks to the following tickets, Sage is mostly ready for
Python 3.…
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# Bug Description
Using `f4` on an ideal seems to not correctly set the `gb` field of a polynomial ideal. This causes an `UndefRefError` when calling, for instance, `normal_form` after computin…
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I want to compute ExtAlgebraGenerators over fields which are not the rationals or cyclotomics (in these cases it works in all examples I'm interested in), and in particular for function fields. The fo…