I think if the interact looks like the pictures in http://www.ams.org/featurecolumn/archive/svd.html it would be snazzier. Also haven't played much with Sage interact so not sure if it is possible, but wouldn't having 4 sliders (one for each entry) be easier if someone really tries to find the transformation that produces flip, rotation and so on.
Rado On Jan 5, 11:39 pm, Rob Beezer <goo...@beezer.cotse.net> wrote: > 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.pdfhttp://buzzard.ups.edu/private/Sage-Enhanced-Textbook.sws
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