https://dev.opencascade.org/doc/occt-6.9.0/refman/html/_extrema___func_ext_s_s_8hxx.html
Extrema_FuncExtSS.hxx File Reference - Open CASCADE Technology Documentation
Extrema_FuncExtSS.hxx File Reference - documentation, user manuals, examples, Open CASCADE Technology
open cascade technologyextremahxxfilereference