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CHANGELOG.md

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Changelog

All notable changes to this project will be documented in this file.

The format is based on Keep a Changelog, and this project adheres to Semantic Versioning.

Unreleased

Added

Changed

  • Improved stability of point_on_variety when using arbitrary precision floats.

Fixed

  • Fixed issue when parsing complex floats with imaginary part in scientific notation.

Deprecated

0.2.3 - 2024-08-20

Added

  • Added warning to point_on_variety if directions are specified when the field is a finite field (and thus the directions cannot be imposed).
  • Support for wp weighted reverse lex order from Singular.
  • test_primality allows to skip to a given projection_number (optional keyword argument)

Changed

Fixed

  • Fixed issue where TIMEOUT was not being correctly set after removing mutableint.
  • Fixed issue in README where the example could not be copy-pasted into code (missing quotation marks).

Deprecated

  • Python 3.8 no longer supported.

0.2.2 - 2024-06-06

Added

  • Custom Monomial and Polynomial classes, to better handle polynomials with coefficients in any of $\mathbb{C}, \mathbb{F}_p, \mathbb{Q}_p$.
  • DOI.
  • Ideal.point_on_variety now checks whether the provided directions are consistent with the given variety.
  • Added support for rational field, Field('rational', 0, 0).
  • Tentatively introducing shorter aliases for field names, such as C, Qp and Fp.
  • Continuous depolyment of Documentation via GitHub Pages.
  • CI checks several python versions.

Changed

  • Ideal.point_on_variety no longer relies on sympy for parsing the polynomials, resulting in a drastic performance boost for complicated systems of polynomials. Interface should be unchanged.
  • Splitting CI Test and CI Lint.
  • Breaking: syngular.TIMEOUT and syngular.DEGBOUND are now normal integers (instead of mutableints) (.set() will not work any longer). Removed mutableint because it breaks with python3.12 and might not be needed in the first place.

Fixed

  • Improved logic for call to Singular with long commands requiring the writing of a file. As a consequence, parallelised calls should now have much better stability.

Deprecated

  • Field.random_element is now deprecated. Use Field.random instead.

0.2.1 - 2024-05-04

Added

  • QRing is an alias for QuotientRing.
  • test_primality accepts optional kwarg, iterated_degbound_computation, with defult value False. Behaviour is unchanged on default setting. If set to True, the codimensions of ideals involving f-poly factors are computed with subsequently looser degree bounds, until either a given degree (18) is exceeded or the codim is greater than that of the original ideal. Use is recommended only for ideals that are expected to be prime and for which the computation without degree bound fails.

Changed

  • Default max_tries for Ideal.point_on_variety increased to 100 from 10: needed when generating a large number of points.

Fixed

  • Occasinally, when generating a point_on_variety with multi-precision complex (mpc) the lex_groebner_basis computation can return the unit ideal, due to precision loss. Introduced a new RootPrecisionError exception and added this to the retry logic.

0.2.0 - 2023-12-27

Added

  • Ideal method to generate points of varieties, Ideal.point_on_variety.
  • Field object (moved from lips)

Fixed

  • Syntax consistency when printing polynomials over rings with single-character variables (forced short=0 always).
  • Import path in Singular for poly.lib is now polylib.lib.

0.1.3 - 2023-03-02

Added

  • Basic interface functions for Ring, QuotientRing and Ideal.
  • Primality test, Ideal.test_primality.