I have been assisted in writing the computational physics material by Professor Manuel J. Páez Mejía of the Universidad de Antioquia, Medellín, Colombia. The computational physics web tutorials are mainly the work of Hans Kowallik of Oregon State University and Manuel J. Páez . The related tutorials on scientific computing have been written by Melanie Johnson, Jon Maestri, and Paul Fink. It is a pleasure to acknowledge helpful discussions with Greg Wilson, Tom Marchioro, Francesca Verdier, Henri Jansen, Cherri Pancake, and many students. We have benefited from support from the US National Science Foundation (curriculum Development grant DUE-9450841), the US Department of Energy, the Undergraduate Computational Engineering and Science Project, and the NSF's Northwest Alliance for Computational Science.