You can use your favorite editing tools to create circuit diagrams without much additional effort. For hints about how to create clear circuit diagrams, we recommend that you read the Guide to Drawing Circuits [ps | pdf] before you begin.
Not suprisingly, Word is the most user-friendly of the common editing tools, even when it comes to drawing circuit diagrams. If you've been satisfied using Word to typeset your homeworks so far, there's no reason to stop now. Here's a Word starter file for you to work from, giving you the shapes for all the logic gates necessary in the circuit assignment.
xfig is an X Windows drawing utility that comes with a library for drawing circuit diagrams. Although xfig is handy and can output your solutions directly to EPS or PDF format, it isn't as friendly to first-time users as most Windows-based drawing programs. However, if you have already been writing your solutions in Latex (or anything other than Microsoft Word), learning xfig is well worth the effort.
However, it seems that xfig is misconfigured on andrew, and you can't use the library packages. Instead use this xfig starter file as a library of the shapes you'll probably need.
When you are done you can save your figures directly to EPS format, using the "Export" command from the "File" menu.
EPS images are relatively easy to include in Latex. First import the
graphicx package by placing the command