This textbook provides a good source for learning the mathematics relevant to computational neuroscience and also the neuroscience itself. There are 232 computer code examples from the book available through the http://www.elsevierdirect.com/companions/9780123748829/pictures/code/index.html code link here and in the below page copied from the books companion web site.
Model Concept(s): Tutorial/Teaching
Simulation Environment: MATLAB (web link to model)
References:
Gabbiani F, Cox SJ. (2010). Mathematics for Neuroscientists.