Jean-François Burnol
Extends ε-TeX’s \numexpr...\relax construct to big integers
A macro for centering lines
Completely customisable TOCs
filecontents + macro + verbatim
hyperref aware footnote.sty
Use Libertine or Biolinum Greek glyphs in mathematics
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
Shape selection for TX fonts Greek letters
Expandable operations on long numbers
Interactive computing sessions (fractions, floating points, polynomials)