Jean-François Burnol
Extends ε-TeX’s \numexpr...\relax construct to big integers
A macro for centering lines
Fix color problems with the package “framed”
Completely customisable TOCs
filecontents + macro + verbatim
A hyperref aware footnote environment
Use LGR-encoded fonts in math mode
Greek letters in math mode from Libertinus or Linux Libertine/Biolinum
Use the text font in maths mode
A parser for polynomial expressions
Logarithms and powers with (almost) 9 digits
Shape selection for PX fonts Greek letters
Tagging tables of contents
Conversion of TeX dimensions to decimals
Shape selection for TX fonts Greek letters
Expandable arbitrary precision floating point and integer operations
Interactive computing sessions (fractions, floating points, polynomials)