Miscellaneous macros by Jorg 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.