On Sun, Mar 9, 2008 at 3:05 PM, Philippe Saade <[EMAIL PROTECTED]> wrote:
>
> Sorry to bother with such trivial stuff...
>
> Suppose i want to ask a student to find a way to define a vector in
> Sage and compute its norm...
>
> My questions are :
>
> 1/ how is he supposed to find the answer in the docs ?
First he would guess that "vector" might be the command to
create a vector, and type vector? into Sage, which would
yield about 20 examples and extensive documentation.
Once he has created a vector v, he types v.[tab] to see
what functions are available for working with vectors. One
of them is called "norm". He types v.norm? and finds out
how that works.
> 2/ how can he easily browse the source to find the "vector" class
> definition and the methods of that class ?
For any given function or method type foo?? for source
instead of foo? (for docs).
Online: Browse all source code is here:
http://www.sagemath.org/hg/sage-main/file/59538ebc8f3b/sage/modules/
>From within the Sage notebook you can browse the complete source code
of theSage library here:
http://localhost:8000/src/
where http://localhost:8000 is replaced by the address of the sage server.
> 3/ how can he be certain of using the "good/best" method ?
He can't.
However, if the code that he writes is very slow, then he may be doing
something wrong, and should look at the source code of Sage and
ask here or on irc #sage-devel (on irc.freenode.net).
> Thanks for your answers...
You're welcome.
>
> Philippe
>
> >
>
--
William Stein
Associate Professor of Mathematics
University of Washington
http://wstein.org
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