# Arrow head not showing up [closed]

I am not sure what I am doing wrong, but the arrow head on the link from the bottom left box to the upper right box does not show up. I want it to be the same as the arrow heads on the other edges. Thanks.

\documentclass{scrartcl}

\usepackage{tikz}

\usetikzlibrary{shapes,positioning,arrows}

\tikzstyle{every entity} = []
\tikzstyle{smentity} = [rectangle, draw, black,
minimum width=4em, minimum height=2em,
every entity]

\begin{document}

\node[smentity] (3)  {0001 1000};
\node[smentity] (4) [right= of 3] {1000 0001} edge[<-,dashed] node[above] {\small{01000}} (3);

\node[smentity] (5) [below= of 3] {1000 0000};
\node[smentity] (6) [right= of 5] {1000 0100} edge[->,dashed] (4);

\draw[>=triangle 60,dashed,thick] (5.east) -- ++(0.8,0) node[below,xshift=-0.4cm]{\small{01000}} -| ++(0,2) -- (4.196);

\end{tikzpicture}
\end{document}


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## closed as too localized by egreg, Marco Daniel, Tom Bombadil, diabonas, Harish KumarSep 30 '12 at 14:24

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You have specified the arrow head but did not select the arrow drawing/direction specification that is ->. Instead you can directly put [-triangle 60,dashed,thick] –  percusse Sep 30 '12 at 12:26
Thank you much; can't believe I made such an elementary mistake, but I very much appreciate your help. –  ozsu Sep 30 '12 at 12:39
No problem at all. Do you mind if we close this question as too localized since it's a rather syntax problem rather than a technical one? –  percusse Sep 30 '12 at 12:41