I'm giving a short (15 min) talk at the annual US mathematics meetings in San Francisco next week, about converting textbooks into Sage worksheets. It's more a preview of what is possible, rather than final report.
Here's links to the slides and a demo Sage worksheet that is suppose to look like a textbook, but with Sage just beneath the surface. The text is hacked out of a section of my linear algebra textbook on linear transformations and interspersed you will find an empty Sage cell, an editable/runnable cell with a Python function that uses a matrix to define a linear transformation. Near the end is a Sage interact meant to visually demonstrate what a linear transformation does to a unit square. Try using the interact to answer the questions that follow it. ;-) The text is bits and pieces and I built with a whole lot of cut/paste, which I believe could all be automated with some work. The interact could be snazzier (like say, move an unsymmetric graphic around instead of a red/blue box). It is meant just to show the possibilities when you mix textbooks in with jsMath, Sage and the notebook. There was a problem with 4.3 and jsMath fonts, so use something older (or maybe 4.3.alpha1 which I am building right now). In particular alpha.sagenb.org is *old* enough that I know it displays properly there. Suggestions, corrections, and feedback welcome. Rob ~~~~~~~~~~ http://buzzard.ups.edu/private/maa-sf.pdf http://buzzard.ups.edu/private/Sage-Enhanced-Textbook.sws
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