Over 300 data sets are included and students can easily import data from any source. Whenever data is changed, every representation or calculation that the data occurs in updates automatically. Graphs can still be made with drag and drop ease but now it is possible to place more than one attribute on an axis. If attributes have units, then these units are used everywhere including algebraic formulas. Fathom 2 understands more than 90 units and can convert from one system to another. Over 100 functions are built in and users can also create their own formulas. A text editor, complete with mathematical typesetting is also included.