typography

• fge a font for Frege's Grundgesetze der Arithmetik
• bguq an improved quantifier stroke for Begriffsschrift

numerics

• mvpoly a library for numerical calculations with multivariate polynomials
• stečkin global optimisation algorithms based on a lemma of S. B. Stečkin
• lcrp the Lipschitz constant for the radial projection on $\ell_p(\mathbb{R})$ and $L^p[0,1]$

cartography and technical illustration

• vfplot plot two-dimensional vector fields
• librtree a C11 R-tree library
• cpt-city an archive of colour gradients
• cptutils convert and manipulate GMT colour palette tables
• dp-simplify decimate polyline data with the Douglas-Peucker algorithm

oddments

• cdc-index index of reviews of Cahiers du Cinéma
• vsd dictionaries of French conjugations for stardict
• conj-man man-pages of French and Italian conjugations
• c99-sushi standalone C99 modules

development links

• gitlab
• codeberg