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There are several ways to put equations into an fig diagram. However, some of these methods may lead to some problems when the diagram is converted to pdf or doc format. This example uses an efficient way of drawing diagram with equations using xfig and latex command. The procedures are as follow:

1) open the xfig program and draw your diagram

First check if gle is already installed at your computer, by typing gle at the command prompt:

~/> gle
GLE version 4.0.10a
Usage: gle [options] filename.gle
More information: gle -help

The above message means that gle is already installed at your computer.

Preparation:

1. Register on the web page http://www.soton.ac.uk/iss/computing/hpc/iridis/webform.html