CTAN update: Lua Hyperbolic
Date: November 14, 2026 7:14:01 PM CET
Damien Mégy submitted an update to the
Lua Hyperbolic
package.
Version: 2026-11-13
License: cc0
Summary description: Hyperbolic geometry in the Poincaré disk model
Announcement text:
- Fixed several bugs, including issues with the computation of automorphisms, PGF's "dimension too large" errors, and figure centering. - Added support for filling polygons and circles. - Changed the syntax of the (Riemannian) exponential map (expMap) and introduced a new function, logMap. - Added examples and animations (frames) to the examples subdirectory. - Added further examples to the documentation.
This package is located at https://mirrors.ctan.org/macros/luatex/latex/luahyperbolic More information is at https://ctan.org/pkg/luahyperbolic
Thanks for the upload. For the CTAN Team Manfred Lotz 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 .
- Fixed several bugs, including issues with the computation of automorphisms, PGF's "dimension too large" errors, and figure centering. - Added support for filling polygons and circles. - Changed the syntax of the (Riemannian) exponential map (expMap) and introduced a new function, logMap. - Added examples and animations (frames) to the examples subdirectory. - Added further examples to the documentation.
This package is located at https://mirrors.ctan.org/macros/luatex/latex/luahyperbolic More information is at https://ctan.org/pkg/luahyperbolic
Thanks for the upload. For the CTAN Team Manfred Lotz 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 .
Lua Hyperbolic – Hyperbolic geometry in the Poincaré disk model
This package allows to draw pictures and do computations in plane hyperbolic geometry, in the Poincaré disk model. Computations are done with Lua, and graphics are generated with TikZ. The package is written in Lua and requires LuaLaTeX.
Features:
- Draw geodesic lines, segments, polygons, rays, circles, horocycles, hypercycles.
- Label and mark segments, angles
- Compute intersections of geodesics, circles, symmetries, reflections, exponential maps, automorphisms
- Draw hyperbolic triangle tilings with a simple LaTeX macro
Example tiling : https://raw.githubusercontent.com/dmegy/luahyperbolic/refs/heads/main/triangle-tiling-2-4-5.png
| Package | Lua Hyperbolic |
| Version | 2026-11-13 |
| Maintainer | Damien Mégy |