CTAN update: tkz-elements
Datum: 6. März 2026 07:41:28 MEZ
Alain Matthes submitted an update to the
tkz-elements
package.
Version: 5.03c 2026-03-04
License: lppl1.3c
Summary description: A Lua library for drawing Euclidean geometry with TikZ or tkz-euclide
Announcement text:
## [2026/03/04 — version 5.03c] ### Changed - **path** - `add_point` now accepts either a `point` object or a string representing coordinates (e.g. `"(2,3)"`, `"(1e-5,0)"`). - String arguments are automatically parsed using `utils.parse_point`. - Improves API flexibility while preserving internal TikZ-formatted storage. - **utils** - Clarified and documented support for scientific notation in `parse_point` (e.g. `1e-5`, `2E3`). - Improved documentation of `format_number`, `checknumber`, and `to_decimal_string`. - Reinforced consistent fixed-decimal formatting for TikZ output. - **tkz-elements.sty** - Removed the `tkzelements` environment. - **point** - Unified approximate equality and geometric identity. - `__eq` now uses the same Euclidean proximity criterion as `identity`. - Removed coordinate-wise comparison in favor of a rotation-invariant distance test. - Centralized comparison logic for improved numerical consistency. - **triangle** - Added `radical_circle`: the circle orthogonal to the three excentral circles. - Added `the_apollonius_center` and `the_apollonius_circle`. - `triangle.feuerbach` is now defined as `triangle.euler_circle()`. ### Documentation - Improved documentation of `\tkzDrawCoordinates`. - Explained its direct mapping to TikZ `plot coordinates`. - Clarified that a Lua `path` is a discrete computational object rendered as an explicit polygonal chain. - Emphasized the design principle: *Lua computes — TikZ draws.* - Clarified terminology: - **mediator** refers to the **perpendicular bisector** of a segment.
The package’s Catalogue entry can be viewed at https://ctan.org/pkg/tkz-elements The package’s files themselves can be inspected at https://mirrors.ctan.org/macros/latex/contrib/tkz/tkz-elements/
Thanks for the upload. For the CTAN Team Petra Rübe-Pugliese
CTAN is run entirely by volunteers and supported by TeX user groups. Please join a user group or donate to one, see https://ctan.org/lugs
## [2026/03/04 — version 5.03c] ### Changed - **path** - `add_point` now accepts either a `point` object or a string representing coordinates (e.g. `"(2,3)"`, `"(1e-5,0)"`). - String arguments are automatically parsed using `utils.parse_point`. - Improves API flexibility while preserving internal TikZ-formatted storage. - **utils** - Clarified and documented support for scientific notation in `parse_point` (e.g. `1e-5`, `2E3`). - Improved documentation of `format_number`, `checknumber`, and `to_decimal_string`. - Reinforced consistent fixed-decimal formatting for TikZ output. - **tkz-elements.sty** - Removed the `tkzelements` environment. - **point** - Unified approximate equality and geometric identity. - `__eq` now uses the same Euclidean proximity criterion as `identity`. - Removed coordinate-wise comparison in favor of a rotation-invariant distance test. - Centralized comparison logic for improved numerical consistency. - **triangle** - Added `radical_circle`: the circle orthogonal to the three excentral circles. - Added `the_apollonius_center` and `the_apollonius_circle`. - `triangle.feuerbach` is now defined as `triangle.euler_circle()`. ### Documentation - Improved documentation of `\tkzDrawCoordinates`. - Explained its direct mapping to TikZ `plot coordinates`. - Clarified that a Lua `path` is a discrete computational object rendered as an explicit polygonal chain. - Emphasized the design principle: *Lua computes — TikZ draws.* - Clarified terminology: - **mediator** refers to the **perpendicular bisector** of a segment.
The package’s Catalogue entry can be viewed at https://ctan.org/pkg/tkz-elements The package’s files themselves can be inspected at https://mirrors.ctan.org/macros/latex/contrib/tkz/tkz-elements/
Thanks for the upload. For the CTAN Team Petra Rübe-Pugliese
CTAN is run entirely by volunteers and supported by TeX user groups. Please join a user group or donate to one, see https://ctan.org/lugs
tkz-elements – A Lua library for drawing Euclidean geometry with TikZ or tkz-euclide
This package provides a library written in Lua, allowing to make all the necessary calculations to define the objects of a Euclidean geometry figure. You need to compile with LuaLaTeX. The definitions and calculations are only done with Lua.
The main possibility of programming proposed is oriented “object programming” with object classes like point, line, triangle, circle and now, conic. For the moment, once the calculations are done, it is tkz-euclide or TikZ which allows the drawings.
| Paket | tkz-elements |
| Version | 5.03c 2026-03-04 |
| Copyright | 2023–2026 Alain Matthes |
| Betreuer | Alain Matthes |