==Teaching with SAGE==
David Kohel, Cryptography - http://www.sagemath.org/pub/crypto.pdf
- David Joyner,
Computational Fourier transforms - http://sage.math.washington.edu/home/wdj/teaching/CFT.pdf, http://sage.math.washington.edu/home/wdj/teaching/cft/
Differential equations - http://sage.math.washington.edu/home/wdj/teaching/DiffyQ/des-book.pdf