Unitica-ONE is a software collection of formulas designed for engineering students. Its drag-and-drop interface makes it easy to use.

Each subject comes in certain modules that can be installed with a simple click of the mouse. Every module contains hundreds of formulae and tables and diagrams with hundreds of thousands of commonly used property values.
With Unitica-ONE, you'll save time editing formulas by being able to drag and drop the desired formulae directly into your document. You can also drag and drop property values out of tables and diagrams directly into your formula or to a specific place in your document.
One thing to note is that Unitica-ONE supports the full drag and drop functionality only with a specially adapted W3C-Amaya-WebBrowser, which is free and available at the Unitica-Homepage. With word and formula editing made so much easier, this software is definitely worth considering.
Version 1.1: N/A