Variables can be of different types
- radio button
- number input
- text input
Number of variables is infinite. As for the radio button - each option has a coefficient, as for the slider - you define unit, scope and step.
Component is updatable via Joomla Update Extensions Manager.
There are 2 predefined CSS styles ready to use, selectable from administration. It is possible to add new ones and component will automatically detects it and you can choose them from select list.
You can download free version of this component from http://www.easyjoomla.org/free-extensions/easycalc-lite?lang=en