Derek Roff's book "Modeling Evolution: An Introduction to Numerical Methods"
would likely be a good resource for anyone using R as a replacement for MatLab.
For most (all?) of its examples it contains code for both languages and has an
appendix with information for translating between the two with a table
comparing related/equivalent functions in the two languages. It also contains
a lot of info and code for doing calculus, simulation, and graphing. While
accessible it would probably be daunting if used as a ground-floor intro to R,
coding, simulation, modeling etc.
