Alain Matthes submitted an update to the

tkz-elements

package.

Version: 4.42c 2025-11-24 License: lppl1.3c

Summary description: A Lua library for drawing Euclidean geometry with TikZ or tkz-euclide

Announcement text: --------------------------------------------------------------------------------

tkz-elements — update 4.42c (2025/11/24) This update brings a new geometric class, several new Apollonius-related tools, improved robustness thanks to extended EPS handling, and many documentation enhancements.

Added

New class angle: A dedicated object for angle management (identifier "A" used internally). Integration with other classes will come in later releases.

class circle: New method CCL (circle–circle–line tangency). Unified similitude method with optional "internal" / "external" mode.

module tkz: New angle-related functions, all with optional EPS: tkz.inner_angle, tkz.angle_between_vectors, tkz.get_angle_normalize. New comparison helper: tkz.approx (optional EPS).

class line: Aliases perpendicular_bisector and bisector for mediator. New method harmonic with mode "internal", "external" or "both".

class triangle: isodynamic_points (alias neuberg_points). three_apollonius_circles. apollonius_circle. apollonius_points. apollonius_circles.

Changed

class matrice: Fixes for print_matrix and matrix:print. Correction of method htm. Intersection Complete rewrite of algorithms with a unified EPS parameter for precision control.

class circle: Many methods now accept an optional EPS argument: on_circle, in_out, in_disk, in_out_disk, in_disk_strict, out_disk_strict, in_out_disk_strict, line_position, pole, is_tangent, is_secant, circles_position, orthogonal_through, midcircle, common_tangent. Improved behaviour of CLL for parallel lines.

class line Improved LLL.

Documentation:

Some corrections New Gothic example for CLP. New CLL example with parallel lines. Rewrite of search_circle.lua. Expanded Apollonius section with new CLP examples. Lua lesson: using string.char(37).

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This package is located at https://mirrors.ctan.org/macros/latex/contrib/tkz/tkz-elements

More information is at https://ctan.org/pkg/tkz-elements

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Thanks for the upload.

For the CTAN Team Manfred Lotz

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