Ah, thx. Und wie funzt das mit dieser Klammer? Das jetzige mit \begin{pmatrix} und so klappt nicht:
rafael@home:~/latex$ pdflatex mathe.tex
This is pdfeTeX, Version 3.141592-1.21a-2.2 (Web2C 7.5.4)
entering extended mode
(./mathe.tex
LaTeX2e <2003/12/01>
Babel <v3.8d> and hyphenation patterns for american, french, german, ngerman, b
ahasa, basque, bulgarian, catalan, croatian, czech, danish, dutch, esperanto, e
stonian, finnish, greek, icelandic, irish, italian, latin, magyar, norsk, polis
h, portuges, romanian, russian, serbian, slovak, slovene, spanish, swedish, tur
kish, ukrainian, nohyphenation, loaded.
(/usr/share/texmf-tetex/tex/latex/koma-script/scrartcl.cls
Document Class: scrartcl 2004/09/16 v2.9t LaTeX2e KOMA document class
(/usr/share/texmf-tetex/tex/latex/koma-script/scrlfile.sty
Package scrlfile, 2004/09/16 v2.9t LaTeX2e KOMA package
Copyright (C) Markus Kohm
) (/usr/share/texmf-tetex/tex/latex/base/size11.clo)
(/usr/share/texmf-tetex/tex/latex/koma-script/typearea.sty
Package typearea, 2004/09/16 v2.9t LaTeX2e KOMA package
Copyright (C) Frank Neukam, 1992-1994
Copyright (C) Markus Kohm, 1994-2002
)) (/usr/share/texmf-tetex/tex/latex/base/inputenc.sty
(/usr/share/texmf-tetex/tex/latex/base/utf8.def
(/usr/share/texmf-tetex/tex/latex/base/t1enc.dfu)
(/usr/share/texmf-tetex/tex/latex/base/ot1enc.dfu)
(/usr/share/texmf-tetex/tex/latex/base/omsenc.dfu))) (./mathe.aux)
! Missing } inserted.
<inserted text>
}
l.24 ...I} $\frac{25}{100}\begin{pmatrix} \frac
{1}{2} - y \end{pmatrix} +...
?
! Emergency stop.
<inserted text>
}
l.24 ...I} $\frac{25}{100}\begin{pmatrix} \frac
{1}{2} - y \end{pmatrix} +...
No pages of output.
Transcript written on mathe.log.
rafael@home:~/latex$