Possible Duplicate:
Matching arrowheads in TikZ with math mode arrowheads
How do I make the arrow head in latex same (or at lest very similar) to those that e.g. \leftarrow produces?
\documentclass[]{article}
\usepackage{tikz}
\begin{document}
\begin{tikzpicture}
\node (A) at (0,0) {$A \rightarrow B$};
\node (B) at (2,0) {$0$};
\path[->]
(B) edge[] node{} (A);
\end{tikzpicture}
\end{document
Silly example, but I use mostly simple diagrams for which I use math-mode arrows, and occasional complicated ones for which I use tikz. It would be nice if they would look the same.