— use XLS instead of XLSX in testsuite datafiles
— use optimset instead of optimoptions
— use quadv/quadl/quadgk instead of integral
— fix race condition in load_m_file_data_legacy.m tests
— use fallback implementation for intersect(…, 'stable')
- use optimoptions instead of optimset
- since one can't take the handle of a function in a package, use str2func to
workaround it
It still does not work, the solver does not converge…