# CTAN update: tkz-elements

Date: December 16, 2023 7:16:48 PM CET

Alain Matthes submitted an update to the
tkz-elements
package.
Version: 1.60c
License: lppl1.3
Summary description: A Lua library for drawing Euclidean geometry with TikZ or tkz-euclide
Announcement text:

- added Internal and external tangents common to two circles: - function circle : `external_tangent`(C) - function circle : `internal_tangent(C) - radical_center and radical_circle are also valid for two circles - function `radical_center` (C1,C2,C3) - function `radical_circle` (C1,C2,C3) - function `circles_position` (C1,C2) - function `midcircle` (C1,C2) powerful tool for working with inversions - Bug corrected in midarc now use get_angle instead of get_angle_ - Modification of a triangle attribute `ca` replaces `ac` to designate the line passing through the third and first points - The center of symmetry of a parallelogram is named "center" instead of "i". - Correction documentation - Correction of examples using the circle:point (k) method, where k is now a real number rather than an angle. - An important example `Golden Arbelos` using the package is on the site (http://altermundus.fr).

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

- added Internal and external tangents common to two circles: - function circle : `external_tangent`(C) - function circle : `internal_tangent(C) - radical_center and radical_circle are also valid for two circles - function `radical_center` (C1,C2,C3) - function `radical_circle` (C1,C2,C3) - function `circles_position` (C1,C2) - function `midcircle` (C1,C2) powerful tool for working with inversions - Bug corrected in midarc now use get_angle instead of get_angle_ - Modification of a triangle attribute `ca` replaces `ac` to designate the line passing through the third and first points - The center of symmetry of a parallelogram is named "center" instead of "i". - Correction documentation - Correction of examples using the circle:point (k) method, where k is now a real number rather than an angle. - An important example `Golden Arbelos` using the package is on the site (http://altermundus.fr).

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 programmation proposed is oriented “object programming” with object classes like point, line, triangle, circle and ellipse. For the moment, once the calculations are done, it is tkz-euclide or TikZ which allows the drawings.

Package | tkz-elements |

Version | 2.30c |

Copyright | 2024 Alain Matthes |

Maintainer | Alain Matthes |