ABSTRACT Since 2001, Wikipedia is providing people around the world with information written by volunteers around the world, making Wikipedia the first free-as-in-freedom online encyclopedia in more then 200 languages. Over time, Wikipedia evolved to distribute the information more efficient. One of the improvements is WikiData, a database to unify and centralize language independent information, as currently, each article about the same topic is independent. To provide similar kind of information advance options, like distance calculation for geographic coordinates, data types were created for WikiData. There is no data type for mathematical formula yet though, as on the one hand, they fulfill the requirements and on the other hand, their properties do not match into already implemented data types. In our project as part of the “DBPRO: Datenbankprojekt” course of the Technical University Berlin, we define and implement this new data type for mathematical expressions and formulae.