On account of people using my posted homeworks and exams to cheat, I removed them from my website. I should have expected this to happen.

This frightening picture depcits the relative strengths of various nuclear weapons that have been detonated. Note that you can barely even see the Hiroshima bomb without the inset picture. And here is a nerdy math joke by GJ Caulkins.

Thanks to my white and nerdy friend George Alexander for pointing me to my new favorite YouTube video. Weird Al Yankovic's White and Nerdy vieo. This video actually mentions "vector calculus" in the lyrics, has the Schrodinger equation for the hydrogen atom (almost - the h needs a bar) in the background of a few frames, and it mentions Kirk vs. Picard. Awesome.

Click here for a presentation I gave today on Gram matrices, principle component analysis, and sensitivity of eigenvalues (Note: This is an overlay presentation so it is best viewed in a PDF viewer such as Preview or Adobe instead of a browser plug-in.)