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While working on the sage.matrix.matrix2.weak_popov_form (for sage.matrix.matrix_misc.weak_popov_form applies the same) method for performance issues I noticed something.
The weak Popov form as def…
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This is to upgrade to Flint 2.7.1.
Our last upgrade was to Flint 2.6.3 in #29719.
Changes in FLINT 2.7.0 (from NEWS file)
2.7.0 -- 11 Dec 2020
* Multivariate factorisation
* Square root and squa…
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I'm using the control package in a modified jupyter/scipy docker container. The modification to the container were just to install the controls package (`RUN pip3 install control`). When i try to plot…
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```
sage: K. = NumberField([x^2-2,x^2-5])
sage: R. = K[]
sage: matrix(R,4, [1,a,s,t]*4).det()
Traceback (most recent call last):
.../matrix/matrix2.pyx
in sage.matrix.matrix2.Matrix.det
(build/cyth…
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I'm interested in computing the 0-dimensional variety of an ideal over finite field extensions of Q. I've tried the following code both on my copy (v4.4.1) of sage and online and it produces an erro…
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The former implementation of generic_power_c made two assumptions
- `not a` is well defined for any element a
- There is a one
These two assumptions do not always always hold. So I reorganized the i…
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It would be nice to have a function which converts algebraic numbers to symbolic expressions using radicals, at least for those cases where this is possible (i.e. the cases where the minimal polynom…
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It would be great to have an interface to GAP3 so that one can use GAP3 packages that have not been ported to GAP4. Of particular interest are the packages (sage-devel occasionally receives question…
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This ticket summarizes the work done in the [ACTIS project](https://bitbucket.org/lucasdavid/sage_coding_project/wiki/Home).
The main goal of this project is to enhance the decoding part of Sage, d…
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By #23706, each matrix space MS prescribes an implementation. It is important that each matrix whose parent is MS uses that implementation, for otherwise comparison breaks, as in the following examp…