# Numerical Algorithms: Variational Integrators

When I was rummaging through my digital attic I found code that I had worked on a few years ago. It is not related to data or database technologies but it is in itself interesting, so that I thought I’d better share it.

To calculate integrals in mathematics or solve differential equations in physics or chemistry you often need a computer’s help. Only in very rare cases can you express the integral symbolically. In most instances you have to be satisfied with a numerical solution, which for many problems is perfectly fine.