diff options
Diffstat (limited to 'Master/texmf-dist/doc/luatex/optex/optex-math.tex')
-rw-r--r-- | Master/texmf-dist/doc/luatex/optex/optex-math.tex | 12 |
1 files changed, 9 insertions, 3 deletions
diff --git a/Master/texmf-dist/doc/luatex/optex/optex-math.tex b/Master/texmf-dist/doc/luatex/optex/optex-math.tex index be25db3970f..97d475af44f 100644 --- a/Master/texmf-dist/doc/luatex/optex/optex-math.tex +++ b/Master/texmf-dist/doc/luatex/optex/optex-math.tex @@ -22,13 +22,13 @@ \addto\_secfont\Blue \addto\_seccfont\Blue \_def\_printsec#1{\_par \_abovetitle{\_penalty-400}\_bigskip - {\_secfont \_noindent \_raggedright \llap{\_printrefnum[@\_quad]}#1\_nbpar}\_insertmark{#1}% + {{\_secfont \_noindent \_raggedright \llap{\_printrefnum[@\_quad]}#1}\_nbpar}\_insertmark{#1}% \_nobreak \_belowtitle{\_medskip}% \_firstnoindent } \_def\_printsecc#1{\_par \_abovetitle{\_penalty-200}\_medskip - {\_seccfont \_noindent \_raggedright \llap{\_printrefnum[@\_quad]}#1\_nbpar}% + {{\_seccfont \_noindent \_raggedright \llap{\_printrefnum[@\_quad]}#1}\_nbpar}% \_nobreak \_belowtitle{\_medskip}% \_firstnoindent } @@ -105,7 +105,13 @@ The math atoms are \ii single/math/object {\em single math objects} or consist only from a single math object then we need not to use brackets. For example `x^2` is a math atom with `x` in nucleus, `2` in exponent and with empty subscript. - Or `a_{i,j}` is a math atom with `a` in nucleus, empty exponent and `i,j` in subscript. + Or `a_{i,j}` is a math atom with `a` in nucleus, empty exponent and `i,j` in subscript.% + \fnote{In \OpTeX/, the character `_` can be interpreted as a part of + control sequence name, not as the subscript constructor. But in common cases, + constructions of math atoms are interpreded exactly as in plain \TeX. See sections + 2.2.2 and 2.14 of \OpTeX/ documentation for more details. If you want to + be sure that `_` is only subscript constructor in \OpTeX/ then you can set \code{\\catcode`\\_=8} + but after this, you cannot use control sequences with `_` character.} The constructors for exponent `^` and for subscript `_` can be used in arbitrary order after the nucleus, for example `z_1^{x+y}` is the same math atom as `z^{x+y}_1`. The single math objects not followed by `^` nor `_` are |