форматировать уравнения для groff или MathML (format equations for groff or MathML)
Смотри также (See also)
'Typesetting Mathematics—User's Guide' (2nd edition), by Brian W.
Kernighan and Lorinda L. Cherry, 1978, AT&T Bell Laboratories
Computing Science Technical Report No. 17.
The TeXbook, by Donald E. Knuth, 1984, Addison-Wesley
Professional.
groff_char(7), particularly subsections 'Logical symbols',
'Mathematical symbols', and 'Greek glyphs', documents a variety
of special character escapes useful in mathematical typesetting.
groff(1), troff(1), pic(1), groff_font(5)
