Sorry, english is my second language.
Here is my problem. I had bound two textboxes to the scope. Each textbox needs to affect the other on changes. You'll understand that it cause conflict. From now, I've got that :
<input type="text" ng-model="celcius" ng-change="farenheit=celcius * 9/5 + 32 || ''">
<input type="text" ng-model="farenheit" ng-change="celcius=(farenheit - 32) * 5/9 || ''">
But it doesn't work properly. Any idea how to trick that ?