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<h2>10.4: Variables</h2>


<UL>
<LI><a href="Variables.html#AboutVariables">About Variables</a>: What variables are used for, and how
<LI><a href="Variables.html#UserVariables">User Variables</a>: Defining your own variables
<LI><a href="Variables.html#Built-inVariables">Built-in Variables</a>: Variables pre-defined by Gri
</UL>

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