/usr/share/texmf-dist/tex/latex/sfg/sfg.sty that belongs to texlive-science package requires pstricks package that comes from dev-texlive/texlive-pstricks.
There seems to be something broken with the sfg package. I grabbed the sfg_test.tex example from http://www.ctan.org/tex-archive/macros/latex/contrib/sfg and tried to build it with pdflatex, but it didn't work: plaes@chi ~/xxx $ pdflatex sfg_test.tex This is pdfTeXk, Version 3.1415926-1.40.9 (Web2C 7.5.7) %&-line parsing enabled. entering extended mode (./sfg_test.tex LaTeX2e <2005/12/01> Babel <v3.8l> and hyphenation patterns for english, usenglishmax, dumylang, noh yphenation, pinyin, coptic, esperanto, estonian, icelandic, indonesian, interli ngua, irish, romanian, serbian, slovenian, turkish, uppersorbian, welsh, loaded . (/usr/share/texmf-dist/tex/latex/base/article.cls Document Class: article 2005/09/16 v1.4f Standard LaTeX document class (/usr/share/texmf-dist/tex/latex/base/size11.clo)) (/usr/share/texmf-dist/tex/latex/graphics/graphics.sty (/usr/share/texmf-dist/tex/latex/graphics/trig.sty) (/usr/share/texmf/tex/latex/config/graphics.cfg) (/usr/share/texmf-dist/tex/latex/pdftex-def/pdftex.def)) (/usr/share/texmf-dist/tex/generic/pstricks/latex/pstricks.sty (/usr/share/texmf-dist/tex/generic/pstricks/pstricks.tex `PSTricks' v1.26 <2008/07/31> (tvz) (/usr/share/texmf-dist/tex/generic/pstricks/pstricks.con)) (/usr/share/texmf-site/tex/latex/xcolor/xcolor.sty (/usr/share/texmf/tex/latex/config/color.cfg))) (./sfg.sty (/usr/share/texmf-dist/tex/latex/fp/fp.sty `Fixed Point Package', Version 0.8, April 2, 1995 (C) Michael Mehlich (/usr/share/texmf-dist/tex/latex/fp/defpattern.sty) (/usr/share/texmf-dist/tex/latex/fp/fp-basic.sty) (/usr/share/texmf-dist/tex/latex/fp/fp-addons.sty) (/usr/share/texmf-dist/tex/latex/fp/fp-snap.sty) (/usr/share/texmf-dist/tex/latex/fp/fp-exp.sty) (/usr/share/texmf-dist/tex/latex/fp/fp-trigo.sty) (/usr/share/texmf-dist/tex/latex/fp/fp-pas.sty) (/usr/share/texmf-dist/tex/latex/fp/fp-random.sty) (/usr/share/texmf-dist/tex/latex/fp/fp-eqn.sty) (/usr/share/texmf-dist/tex/latex/fp/fp-upn.sty) (/usr/share/texmf-dist/tex/latex/fp/fp-eval.sty)) Style sfg, by Hanspeter Schmid, version 0.91 ) (./sfg_test.aux) ! Undefined control sequence. <recently read> \c@lor@to@ps l.12 ...(6,2){\sfgbranch{3}{0}\S{$\frac{1}{R_1}$}}
fixed, thanks (In reply to comment #1) > There seems to be something broken with the sfg package. as the name should imply, pstricks does not work with pdflatex, you have to use latex then dvips to obtain a ps file.
