Nice to have - a library for linear algebra functions and other misc math functions
utilities/NekMesh/ProcessModules/ProcessVarOpti/Evaluator.hxx contains some linear algebra function that would be useful in general. Within library/LibUtilities/TimeIntegration/TimeIntegrationScheme.cpp there is a factorial and phi function that would also be useful in general.
It would be nice to have such functions in a more general area of the code base.