The Department of Mathematics has an extensive collection of mathematical models and mathematical instruments.
The mathematical models were used to illustrate geometric correlations in teaching, in engineering education and for research projects. The plaster models of the Ludwig Brill produced in the 19th century are supposed to be the oldest models in the collection. In addition, there are models made of wood, metal and plastic, thread models and rotating models as well as models for projection. Until 1978, the collection was supplemented by the former Mathematical Institute.