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• maths: Properties of the Real Numbers
PDF slides of a presentation about axiomatic construction of numbers.

• maths: A Graphical Derivation of the Legendre Transform
a geometrical interpretation of the Legendre transform and convex functions.

• misc: Introduction to Auto Racing
video of a Keynote presentation about designing and driving race cars.

• programs: Circles
the Python code used to generate the background images on this site.
EDIT: Program has been revised to use PyLab's interactive mode for graphics.

• maths: How To Calculate Interest
an introduction to bonds, student loans, credit cards, and savings accounts. (includes example spreadsheets.)

• programs: NumPy / SciPy examples
examples of some common scientific programming tasks using SciPy.
EDIT: Programs have been revised to use PyLab's interactive mode for graphics.

• maths: Too Much Information
PDF slides of a presentation about Shannon entropy, thermodynamics, and quantum information theory.

• misc: The Science of Sound
video of a Keynote presentation about the physics of audio production.

• programs: RSA encryption, Mathematica tournaments, matrix maths in C++
• Python program for teaching and learning RSA, Caesar-style, and polyalphabetic encryption
• Mathematica notebooks for estimating variance and profit in winner-take-all poker tournaments
• C++ code for matrix manipulation and random matrix generation using the Eigen open-source (LGPL) library

• maths: A Crash Course In Group Theory, Matrix Cheat Sheet, Phase Qubits
• a short introduction to finite group theory
• a quick-reference guide to matrix algebra terminology
• an introduction to the theory of superconducting Josephson junction phase qubits

except where otherwise noted, all content on this site is licensed under a Creative Commons Attribution-Noncommercial-Share Alike License.