title: Work with multiple Forms and its values
body: <p>Assume an certain amount of forms created by ng-repeat, which allows the user to sum something up like a+b and display the result instantly.
  How would the Controller look like?</p>
  
  <pre><code>&lt;div data-ng-repeat="form in forms"&gt;
      &lt;form name={{form.name}}&gt;
          &lt;input type="text" name="a" ng-modal="?"&gt;
          &lt;input type="text" name="b" ng-modal="?"&gt;
       &lt;/form&gt;
       &lt;p&gt;{{?.result}}&lt;/p&gt;
  &lt;/div&gt;
  </code></pre>
  
  <p>The question marks within the html should be something unique I guess. And the controller may access something like an array of forms from scope ... but maybe someone has a suggestion</p>