GNU/Linux man pages
Livre :
Expressions régulières,
Syntaxe et mise en oeuvre :
Unix |
Unix v6 |
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eqn(1) |
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delim $$ eqn typeset mathematics [ file ] ... is a troff
(I) preprocessor for typesetting mathematics on the Graphics
Systems phototypesetter. Usage is almost always eqn file ...
| troff If no files are specified, reads from the standard
input. A line beginning with ‘‘.EQ’’
marks the start of an equation; the end of an equation is
marked by a line beginning with
‘‘.EN’’. Neither of these lines is
altered or defined by so you can define them yourself to get
centering, numbering, etc. All other lines are treated as
comments, and passed through untouched. Spaces, tabs,
newlines, braces, double quotes, tilde and circumflex are
the only delimiters. Braces ‘‘{}’’
are used for grouping. Use tildes
‘‘~’’ to get extra spaces in an
equation. Subscripts and superscripts are produced with the
keywords and Thus makes $x sub i$, produces $a sub i sup 2$,
and gives $e sup {x sup 2 + y sup 2}$. Fractions are made
with is $a over b$ and is $1 over sqrt {ax sup 2 +bx+c}$ .
makes square roots. The keywords and introduce lower and
upper limits on arbitrary things: $lim from {n-> inf} sum
from 0 to n x sub i$ is made with Left and right brackets,
braces, etc., of the right height are made with and produces
$left [ x sup 2 + y sup 2 over alpha right ] ~=~1$. The
clause is optional. Vertical piles of things are made with
and produces $pile {a above b above c}$. There can be an
arbitrary number of elements in a pile. left-justifies, and
center, with different vertical spacing, and right
justifies. Diacritical marks are made with is $x dot = f(t)
bar$. Default sizes and fonts can be changed with and
various of and Keywords like ( sum ) ( int ) ( inf ) and
shorthands like >= (>=) > (->), != ( != ), are
recognized. Spell out Greek letters in the desired case, as
in Mathematical words like sin, cos, log are made Roman
automatically. Troff (I) four-character escapes like \(bs ()
can be used anywhere. Strings enclosed in double quotes
"..." are passed through untouched. A System for
Typesetting Mathematics (Computer Science Technical Report
#17, Bell Laboratories, 1974.)
TROFF Users’ Manual (internal memorandum)
TROFF Made Trivial (internal memorandum)
troff (I), neqn (I) Undoubtedly. Watch out for small or large point sizes it’s tuned too well for size 10. Be cautious if inserting horizontal or vertical motions, and of backslashes in general.
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eqn(1) | |