Math & Science ⇒ \varkappa - which package

[tpokala]

Hi, I have to use

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\varkappa(G)

in my document, but have an error undefined control sequence. I was try use amssymb and amsmath packages in my header but with no luck

[frabjous]

\varkappa is defined by amssymb. I had no trouble compiling this:

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\documentclass{article}
\usepackage{amssymb}
\begin{document}
$\varkappa(G)$ 
\end{document}

Are you sure your undefined control sequence error isn't coming from somewhere else?

[tpokala]

I have checked it one more time and now when I have above package in header stil doesn't work but now error is:

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command '\lll' already defined

If I remove

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\usepackage{amssymb}

have still mentioned previous error

[frabjous]

There's a conflict between two packages you're using, most likely. But only knowing one of them makes it pretty hard to diagnose it or suggest fixes. I'd try loading the AMS packages prior to any others. If that doesn't solve the issue, then reduce it to a minimal working example and post it here.

[tpokala]

Still with no luck.

I had disble unused package and now have the same error. Line above it is:

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...\amsfonts\amsfonts.sty

My header:

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\documentclass[12pt,a4paper,titlepage,twoside]{report}

\usepackage[polish]{babel}
\usepackage[cp1250]{inputenc}
\usepackage{polski}
\usepackage{fancyhdr}
\usepackage{graphicx}
%\usepackage{multirow}
%\usepackage{booktabs}
\usepackage[OT4]{fontenc}
\usepackage[bindingoffset=1.5cm,centering,includeheadfoot,margin=3cm]{geometry}
\usepackage[pdftex,plainpages=false,pdfpagelabels,pdfstartpage=1,pdfstartview=FitH]{hyperref}
\usepackage{tikz}
\usetikzlibrary{arrows,automata,positioning,snakes,backgrounds}
\usepackage{chngcntr}
%\usepackage{pgf}
%\usepackage{verbatim}
%\usepackage{algorithm2e}
%\usepackage{tocloft}
%\usepackage{dot2texi}
%\usepackage{pst-node}
\usepackage{amssymb}

[frabjous]

The amssymb package loads amsfonts so there's no need to load both separately.

Anyway, the problem goes away for me if I do what I suggested earlier: load the AMS package first. In particular, load amssymb before the babel package.

[tpokala]

Ok, now it is working corectly

[localghost]

Now that the problem is solved, please be so kind and mark the topic (and not the last post) accordingly as clearly written in Section 3 of the Board Rules (to be read before posting). Please keep that in mind for the future so that further reminders will not be necessary.


Thorsten