There are lots of ways to handle these issues.  Two basic commands are
load and attach, see for example:
http://www.sagemath.org/doc/tutorial/programming.html
for some details.

For things you want to use a lot, you can make a custom $HOME/.sage/
init.sage file that will be executed every time Sage starts.  For
example, this might be nice if you usually use numpy and scipy.  You
can also use it to customize settings, for example doing
implicit_multiplication(True).

If you are an emacs power user you might like sage-mode in emacs:
http://wiki.sagemath.org/sage-mode.  I don't use it myself so I can't
comment much, but I do know many people are very productive with it.

-Marshall Hampton

On Apr 20, 3:23 am, kuhn <[email protected]> wrote:
> Hello, my first Sage functions start working,  and I would like now
> to start organizing them,
> like creating some big files
> with useful programs, put them on the path,  and
> reload later  (as I would do in  Maple, Scilab,...)
>
> Also, I would want  to use packages provided on the web, but I can't
> find out how, beyond the slow  copy-paste-execute.
>
> I would hope that all the files are stored under windows, or by  the
> sage-wmware, but unfortunately,
> I  still don't know if I'm working online or "chez moi", or if I can
> transfer files from Windows to
> wmware
>
> Is there somewhere  where I  could find quickly  this elementary
> stuff?
>
> Thanks ....

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