If you are trying to do math on a live point value, try this in your play area:
<md-input-container>
<label>Choose a point</label>
<ma-point-list limit="200" ng-model="myPoint"></ma-point-list>
</md-input-container>
<ma-get-point-value point="myPoint"></ma-get-point-value>
<p>The live point value divided by 5 is {{myPoint.value / 5}}.</p>
This is doing math in the HTML via interpolation within the expression: (code surrounded by double curly brackets)