On Thu, 08 May 2008 at 10:06PM +0100, John Cremona wrote: > Personally I believe that one should only use a vector type (class) > when one wants to do something vectorial with the object, i.e. add two > or take a scalar multiple (and so on). If you just need a list, use a > list. The trouble comes when people think of anything enclosed in > some shape of brackets with components separated by commas as being a > "vector".
The adding and scalar multiples are part of why I asked my question here...I tell my students over and over again that the solutions to these DE systems look like a sum of: e^(eigenvalue) * eigenvector so it would be nice if, when doing a parametric plot, we could mirror that notation. Now, as it turns out none of my students use Sage now...but sometime in the future this would be nice! Thanks to everyone in this thread with their suggestions and help. Dan -- --- Dan Drake <[EMAIL PROTECTED]> ----- KAIST Department of Mathematical Sciences ------- http://math.kaist.ac.kr/~drake
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