<h1 id="rule_manager_symb_eq">Rule manager - symbol equations</h1>

<p><img class="screenshot" src="img/gama_tts_editor-rule_manager-symbol_equations.png"
	alt="Screenshot of the rule manager - symbol equations"></p>

<p>The symbol equations define the durations for the Rule.
</p>

<p>Operations:</p>
<ul>
<li>Select an Equation for a symbol:<br>Select the symbol and select the Equation on the Equations tree.</li>
<li>Clear a symbol:<br>Select the symbol and click on "Clear".
 Mark 3 should only used by tetraphone Rules, and Mark 2 should only used by triphone and tetraphone Rules.</li>
</ul>
