The section on modeling [1] is also a great introduction. [1] http://saedsayad.com/modeling.htm http://saedsayad.com/modeling.htm (Click the links on this pag

The section on modeling [1] is also a great introduction. [1] http://saedsayad.com/modeling.htm http://saedsayad.com/modeling.htm (Click the links on this page, they aren't just going to Wikipedia. :-)