How can I draw flow chart using LaTeX? [closed]

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How can I draw flow chart using LaTeX?

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Tikz is a good graphics library to do this (directly in Latex), here is an example of a flowchart made with it.

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I know it's not strictly using LaTeX, but the Graphviz suite of tools is pretty neat.

From the description:

The Graphviz layout programs take descriptions of graphs in a simple text language, and make diagrams in several useful formats such as images and SVG for web pages, Postscript for inclusion in PDF or other documents; or display in an interactive graph browser. (Graphviz also supports GXL, an XML dialect.)

Because the tools are command-line driven, there are ways to include Graphviz graphs in-line in LaTeX files, such as dot2texi.

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On CTAN exists a package nassflow. The documentation contains an example on page 5.

The package is from 1997, but I was able to use it without problems with TeXLive 2012. It is not part of the TeXLive distribution (wrong license), so you must install it manual. For a quick test, just download everything in a directory and try it.