wip/symbolic++ 3.35 NetBSD

SymbolicC++ uses C++ and object-oriented programming to develop a computer algebra system. Object-oriented programming is an approach to software design that is based on classes rather than procedures. This approach maximizes modularity and information hiding. Object-oriented design provides many advantages. For example, it combines both the data and the functions that operate on that data into a single unit. Such a unit (abstract data type) is called a class.