Sometimes in MatLab you’ll have a class, and you want to have a function or method in that class that modifies an instance variable in some way. But if you code your class like this:
I am Joe. I'm one of many Joes, but I am uniquely me. I'm the messiest organized guy you'll ever meet. My glasses are always bent and my hair always a mess. I've never had a role model and as such am my own person. Scientist, programmer, Christian, libertarian, and life long learner.