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There's at least one textbook based on Wolfram's proprietary CDF format.

http://www.wolfram.com/mathematica/customer-stories/developi...

(I like your visualization page – a nice way to explain that part of wavelet compression.)

Wow, you taught me something. I've heard of the "Fourier transform" many times and it never clicked what it was for.

Thanks!

Just an FYI, but your choice of series colors for your graph are very difficult to differentiate as a colorblind person. Might consider changing one of the colors.

Could you possibly check now? Also, there are two more interactive pages that are "hidden": http://personnel.usainteanne.ca/aroberge/mirror.html and http://personnel.usainteanne.ca/aroberge/single_lens.html