Root Finding Routines
Fixed Point Iteration
Solution of Initial Value Problems y' = f(t,y)
Overview (Word doc)  Euler.c Euler.h func.c
RungeKutta Method  Adams-Bashforth-Moulton Method


Finance Source Code
Black-Scholes for European Derivatives:

Paul Kunz' Online Lectures on C++ for Particle Physicists
Love this online course!

Techniques for Scientific C++  Great online book answers the question "Are Virtual Functions Evil?"

How C Programing Works  The basics from howstuffworks.com, walks through essential components of the language

A Tutorial on Pointers and Arrays in C  Classic free online text by Ted Jensen

Borland Trial C++ Builder  Free trial with registration
Effective C++ and More Effective C++  By Scott Meyers

Let's Build a Compiler!  Multipart tutorial by Jack Crenshaw, uses Borland Pascal as a foundation.

Stupidest Thing You've Coded Just to See if you Could

Hello World!  And more hello world!