I've used the code sample from the docs:
var myApp = angular.module('myApp', []);

myApp.controller('myCtrl', ['$scope', function ($scope) {
$scope.count = 0;
$scope.divideValue;
$scope.increment = function () {
++$scope.count
};
$scope.dividend = function () {
return Math.random() * 20 + 20
};
$scope.divisor = function () {
return Math.random() * 10 + 1
};
}]);

div ng-controller="myCtrl"
a ng-click="increments">Count!
a ng-click="divideVal = dividend() / divide()">Count!
/div>

There is no hint warning in the controller.