JISのものを利用している状況で起こっています．
binフォルダの中にplatex-sjisのショートカットが入っていたので，
******:~ ******$ /usr/local/teTeX/bin/platex-sjis -sh re5771.tex
としたら，以下のようなメッセージが出ました．何かの参考になるでしょうか．


Last login: Mon Mar 12 09:44:50 on ttyp1
Welcome to Darwin!
******:~ ******$ /usr/local/teTeX/bin/platex-sjis -sh re5771.tex
This is pTeX, Version 3.141592-p3.1.10 (sjis) (Web2C 7.5.4)
 \write18 enabled.
(./re5771.tex
pLaTeX2e <2006/01/04>+0 (based on LaTeX2e <2005/12/01> patch level 0)
(/usr/local/teTeX/share/texmf/ptex/platex/base/jarticle.cls
Document Class: jarticle 2002/04/09 v1.4 Standard pLaTeX class
(/usr/local/teTeX/share/texmf/ptex/platex/base/jsize10.clo))
(/usr/local/teTeX/share/texmf-local/ptex/platex/emath/emathPp.sty
(/usr/local/teTeX/share/texmf-local/ptex/platex/emath/emathPh.sty
(/usr/local/teTeX/share/texmf-local/ptex/platex/emath/epic.sty
Enhancements to Picture Environment. Version 1.2 - Released June 1, 1986
) (/usr/local/teTeX/share/texmf-local/ptex/platex/emath/eepic.sty
Extension to Epic and LaTeX. Version 1.1e - Released Dec 21, 1999
) (/usr/local/teTeX/share/texmf-local/ptex/platex/emath/eclarith.sty
eclarith.sty 1.1 --- July 1, 1992
) (/usr/local/teTeX/share/texmf-local/ptex/platex/emath/emath.sty
(/usr/local/teTeX/share/texmf-local/ptex/platex/emath/emath2e.sty
(/usr/local/teTeX/share/texmf-local/tex/latex/amsmath/amsmath.sty
For additional information on amsmath, use the `?' option.
(/usr/local/teTeX/share/texmf-local/tex/latex/amsmath/amstext.sty
(/usr/local/teTeX/share/texmf-local/tex/latex/amsmath/amsgen.sty))
(/usr/local/teTeX/share/texmf-local/tex/latex/amsmath/amsbsy.sty)
(/usr/local/teTeX/share/texmf-local/tex/latex/amsmath/amsopn.sty))
(/usr/local/teTeX/share/texmf-dist/tex/latex/amsfonts/amssymb.sty
(/usr/local/teTeX/share/texmf-dist/tex/latex/amsfonts/amsfonts.sty))
(/usr/local/teTeX/share/texmf-local/ptex/platex/emath/emathE.sty
(/usr/local/teTeX/share/texmf-local/tex/latex/tools/enumerate.sty)
(/usr/local/teTeX/share/texmf-local/ptex/platex/emath/emathEc.sty
(/usr/local/teTeX/share/texmf-local/ptex/platex/emath/emathC.sty
(/usr/local/teTeX/share/texmf-local/tex/latex/tools/calc.sty)
(/usr/local/teTeX/share/texmf-local/tex/latex/base/ifthen.sty))
(/usr/local/teTeX/share/texmf-local/tex/latex/graphics/keyval.sty))
(/usr/local/teTeX/share/texmf-local/ptex/platex/emath/jquote.sty)
(/usr/local/teTeX/share/texmf-local/ptex/platex/emath/emathK.sty))))
(/usr/local/teTeX/share/texmf-local/tex/latex/graphics/graphicx.sty
(/usr/local/teTeX/share/texmf-local/tex/latex/graphics/graphics.sty
(/usr/local/teTeX/share/texmf-local/tex/latex/graphics/trig.sty)
(/usr/local/teTeX/share/texmf-dist/tex/latex/graphics/graphics.cfg)
(/usr/local/teTeX/share/texmf-local/tex/latex/graphics/dvips.def)))
(/usr/local/teTeX/share/texmf-local/tex/latex/graphics/color.sty
(/usr/local/teTeX/share/texmf-dist/tex/latex/graphics/color.cfg)
(/usr/local/teTeX/share/texmf-local/tex/latex/graphics/dvipsnam.def))))
(./re5771.aux)Can't locate emath.pl in @INC (@INC contains: /System/Library/Perl/5.8.6/darwin-thread-multi-2level /System/Library/Perl/5.8.6 /Library/Perl/5.8.6/darwin-thread-multi-2level /Library/Perl/5.8.6 /Library/Perl /Network/Library/Perl/5.8.6/darwin-thread-multi-2level /Network/Library/Perl/5.8.6 /Network/Library/Perl /System/Library/Perl/Extras/5.8.6/darwin-thread-multi-2level /System/Library/Perl/Extras/5.8.6 /Library/Perl/5.8.1 .) at temp.pl line 2.

Runaway argument?
! Paragraph ended before \@trimleading was complete.
<to be read again> 
                   \par 
l.5 \calcval{1/3}\kotae
                       
? 

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　　　　　　└◆5812:--- [---] 03/12 11:06<-last