WordMat is an add-on for Microsoft Word that creates a tab with mathematical functionality. Some of the functions are provided by other open source apps such as Geogebra, Maxima, and GnuPlot.

It provides numerous functions and complex tools that are able to assist you in performing various mathematical calculations. These range from simple formula libraries to advanced calculator functions, graph generators, plots and tables.

Key Features include:

• Full editorial layout controls.
• Annotation support directly in Word via comment function.
• Solve equations.
• Plot graphs.

Overall, WordMat extends Microsoft Word's mathematical capabilities by providing you with advanced functions, formulas and graph generator utilities, however the interface is a tad confusing as some parts are not translated from Danish to english.