Numerical analysis in economics Recently, I have become interested in numerical analysis withinin macroeconomics. In particular, I have been trying to learn algorithms such as "backwards iteration", the "shooting method" etc, in order to numerically solve an optimal control model, more specifically a growth model. 

Could you give me some references for introductory and intermediate numerical analysis textbooks ?
You can also find Kenneth Judd's book on numerical analysis here. It is one of the very known and notorious books in that field.