The department for Scientific Computing & Mathematics focuses on three domains: method oriented research, HPC expertise and education. In the interdisciplinary research group Computational Science and Mathematical Methods, everything revolves around modelling and numerical methods. Experts from our Simulation and Data Life Cycle Labs and the bwRSE4HPC project support researchers on our HPC-clusters. They help with the implementation of simulation models and the development of research software. And for the scientists of tomorrow, we offer workshops with CAMMP and Simulated Worlds. Our experts join teachers in their class room and explain exciting, real-world problems with the help of mathematical modeling.