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// Assign and Evaluate a Math Operation

<mvt:assign name="g.variable" value=" '10 + 10 = ' $ (10+10)" />
&mvt:global:variable;

<br>

<mvt:eval expr="g.variable" />

// Assign and Evaluate a String

<mvt:assign name="g.variable" value="'hello world'" />
&mvt:global:variable;

<br>

<mvt:eval expr="g.variable" />