Miscellaneous macros by Jörg Knappen, including:
– represent counters in greek;
– Maxwell's non-commutative division;
– latin1jk, latin2jk and latin3jk, which are their inputenc definition files that allow verbatim input in the respective ISO Latin codes;
– blackboard bold fonts in maths;
– use of RSFS fonts in maths;
– extra alignments for \parboxes;
– swap Roman and Sans fonts;
– transliterate semitic languages;
– patches to make (La)TeX formulae embeddable in SGML;
– use maths “minus” in text as appropriate;
– simple Young tableaux.

The author is Jörg Knappen.