Below is some source code I have written. Most of it is either in C or C++. The tarballs include Makefiles and should compile as long as you have the necessary libraries. All of the code below is in the public domain unless stated otherwise.

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Graphics

• OpenGL with Simple DirectMedia Layer: A barebones code for setting up OpenGL for use with SDL. Requires: SDL and OpenGL.

Handwritten Digit Recognition

• Using GNU Octave for Handwritten Digit Recognition. The code for automatic handwritten digit recognition contained in one of my papers. Requires: MATLAB or GNU Octave

Numerical Methods

• QR Least-Squares Solver with Column Pivoting: A basic implementation of QR factorization with column-pivoting (using Householder transforms) with a least-squares solver. Requires: ANSI C.
• Row-wise Cholesky Factorization in C++ with Timing Routines: A simple program demonstrating a row-wise implementation of a Cholesky factorization in C++. Timing routines are provided for obtaining statistical results (compare with the column-wise Cholesky). Requires: ANSI C++.
• Column-wise Cholesky Factorization in C++ with Timing Routines: A simple program demonstrating a column-wise implementation of a Cholesky factorization in C++. Timing routines are provided for obtaining statistical results (compare with the row-wise Cholesky). Requires: ANSI C++.
• Monte Carlo Integrator in R^3: A simple Monte Carlo integrator for functions in R^3 over an arbitrary domain. This code uses function pointers for ease of use and modularity. Requires: ANSI C.
• Runge-Kutta Method of Order Four: A quick and dirty program implementing the Runge-Kutta method of order four (RK4) in C. This code also uses function pointers for modularity. Requires: ANSI C

Simulations

• PDE Visuals: Two programs using C++ and OpenGL to visualize solutions to the 2D heat/diffusion equation and the 2D wave equation with Dirichlet boundry conditions. The heat equation is solved using finite differences with the Peaceman-Rachford method, while the wave equation is approximated with a Fourier series solution. Requires: OpenGL and GLUT.