奥村先生の jsarticle を 9pt オプションつきで使用した場合、
\houteisiki がエラーを引き起こすようです。

  以下のリスト

\documentclass[9pt]{jsarticle}
\usepackage{emath}

\begin{document}
\houteisiki{a}
\end{document}

を処理すると、次のようなエラーになります。9pt オプションを外すと、エラーは
起きません。
  jsarticle, emath のバージョンは、先ほど一通り全部新しくしたつもり…です。

This is pTeX, Version 3.141592-p3.1.9 (sjis) (Web2C 7.5.5)
pLaTeX2e <2005/01/04>+0 (based on LaTeX2e <2003/12/01> patch level 0)
Babel <v3.8g> and hyphenation patterns for english, usenglishmax, ukenglish, ba
sque, bulgarian, coptic, welsh, czech, slovak, german, ngerman, danish, spanish
, catalan, estonian, finnish, french, irish, polygreek, monogreek, ancientgreek
, croatian, hungarian, interlingua, ibycus, bahasa, icelandic, italian, latin, 
mongolian, dutch, norsk, polish, portuguese, pinyin, romanian, russian, samin, 
slovene, usorbian, serbian, swedish, turkish, ukrainian, dumylang, nohyphenatio
n, loaded.
(./fff.tex (c:/usr/share/texmf-local/ptex/platex/js/jsarticle.cls
Document Class: jsarticle 2006/11/01 okumura
) (c:/usr/share/texmf-local/ptex/platex/emath/emath.sty
(c:/usr/share/texmf-local/ptex/platex/emath/emath2e.sty
(c:/usr/share/texmf/tex/latex/amslatex/amsmath.sty
For additional information on amsmath, use the `?' option.
(c:/usr/share/texmf/tex/latex/amslatex/amstext.sty
(c:/usr/share/texmf/tex/latex/amslatex/amsgen.sty))
(c:/usr/share/texmf/tex/latex/amslatex/amsbsy.sty)
(c:/usr/share/texmf/tex/latex/amslatex/amsopn.sty))
(c:/usr/share/texmf/tex/latex/amsfonts/amssymb.sty
(c:/usr/share/texmf/tex/latex/amsfonts/amsfonts.sty))
(c:/usr/share/texmf-local/ptex/platex/emath/emathE.sty
(c:/usr/share/texmf/tex/latex/tools/enumerate.sty)
(c:/usr/share/texmf-local/ptex/platex/emath/emathEc.sty
(c:/usr/share/texmf-local/ptex/platex/emath/emathC.sty
(c:/usr/share/texmf/tex/latex/tools/calc.sty)
(c:/usr/share/texmf/tex/latex/base/ifthen.sty))
(c:/usr/share/texmf/tex/latex/graphics/keyval.sty))
(c:/usr/share/texmf-local/ptex/platex/emath/jquote.sty)
(c:/usr/share/texmf-local/ptex/platex/emath/emathK.sty)))) (./fff.aux)
! Illegal unit of measure (pt inserted).
<to be read again> 
                   -
l.5 \houteisiki{
                a}
! Missing number, treated as zero.
<to be read again> 
                   \edef 
l.5 \houteisiki{
                a}
! Illegal unit of measure (pt inserted).
<to be read again> 
                   \edef 
l.5 \houteisiki{
                a}
(c:/usr/share/texmf/tex/latex/amsfonts/umsa.fd)
(c:/usr/share/texmf/tex/latex/amsfonts/umsb.fd) [1] (./fff.aux) )
(see the transcript file for additional information)
Output written on fff.dvi (1 page, 456 bytes).
Transcript written on fff.log.

▼関連発言
│
└◆6132:jsarticle サイズオプションと houteisiki [井汲 景太] 06/10 20:54
　└◆6133:Re:jsarticle サイズオプションと houteisiki [tDB] 06/10 22:19
　　└◆6136:Re[2]:jsarticle サイズオプションと houteisiki [井汲 景太] 06/11 15:06<-last