Hi, While browsing the
http://sage.math.washington.edu/home/wdj/teaching/index.html (btw which is the best tutorial for sage I ever found), I was looking at this http://sage.math.washington.edu/home/wdj/teaching/granville-calculus/granville-calculus.pdf page 75. compare figure 5.9 (original hand made?), and 5.10 (Sage). I prefer the original one. The Sage one looks too computer made and ugly. And this reminded me, that one reason (of many) while I started sympy was that I wanted to make such plots fully automatic. i.e. you would write: Plot(arcsec(x)) and it will plot you the figure 5.9 (instead of 5.10), including all those titles, like Pi, Pi/2 etc. Using matplotlib latex engine, etc, etc. At first sight, it maybe sounds too difficult or vague, but I don't think so. If a man can do this, than a computer can do this too. One needs to find singularities first - arcsec is a difficult example. Let's take tan(x)=sin(x)/cos(x). So first one would look at the denominator, finds all zero points. (symbolically). Then it finds asymptotics, using limits. Plot lines for asymptotics. Etc., and so on. I don't think any CAS system can do this, so Sage could be the first. Just another GSOC idea. Ondrej --~--~---------~--~----~------------~-------~--~----~ To post to this group, send email to sage-devel@googlegroups.com To unsubscribe from this group, send email to [EMAIL PROTECTED] For more options, visit this group at http://groups.google.com/group/sage-devel URLs: http://sage.scipy.org/sage/ and http://modular.math.washington.edu/sage/ -~----------~----~----~----~------~----~------~--~---
