Differential equation solvers. for the fully gory details, see https://docs.sciml.ai/SciMLBenchmarksOutput/stable/ (for a specific example, see https://docs.sciml.ai/SciMLBenchmarksOutput/stable/StiffODE/...). radau and cvode are the C++ solvers which are in the majority of cases inferior to the pure julia solvers (Rodas5P, FBDF etc)