basic questions

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harven

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Jul 4, 2007, 5:54:31 PM7/4/07
to sage-support
I am a new sage user and I have a few (basic) questions.
I am using sage-2.6-intel-mac-i386-Darwin.

1) how do I rename a worksheet ?
2) how do I save a worksheet under another name (save as) ?
3) how do I completely remove output from a worksheet (not hide -
remove) ?
4) is there a way to make animated plots ?
5) is there a way to sum infinite series, eg sum (1/n^2), n positive
integer ?
6) is it possible to import a maple worksheet ?
7) finally, is there a faq ? My questions are pretty basic and were
probably answered many times.

Thanks for this great software,
harven

William Stein

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Jul 4, 2007, 6:16:40 PM7/4/07
to sage-s...@googlegroups.com, Bobby Moretti
On 7/4/07, harven <har...@free.fr> wrote:
> I am a new sage user and I have a few (basic) questions.
> I am using sage-2.6-intel-mac-i386-Darwin.
>
> 1) how do I rename a worksheet ?

This is not possible with sage-2.6. With sage-2.7, which will be released
within a week, it is trivial -- just click on the worksheet name.

In case you're curious, you can try out the new SAGE notebook here:
https://sage.math.washington.edu:8101/
This will be included standard in SAGE >= 2.7.

> 2) how do I save a worksheet under another name (save as) ?

Same answer as (1)

> 3) how do I completely remove output from a worksheet (not hide -
> remove) ?

I don't understand the question. Perhaps the answer is to just
delete the input cell that produced the output. You delete an
input cell by deleting all its contents then pressing backspace
in the cell.

> 4) is there a way to make animated plots ?

I added this to SAGE-2.7 recently. This is not available in
SAGE-2.6. The middle of this page has an example
of an animated plot:
https://sage.math.washington.edu:2007/home/pub/58/
It was produced by just making a bunch of graphics
and using the new plot_animated_gif command. Note ---
the command name for plotting an animated gif may change
in SAGE-2.7, e.g., if v is a list of plots, it might change to:

show(animate(v))

which is much more logical.

> 5) is there a way to sum infinite series, eg sum (1/n^2), n positive
> integer ?

SAGE doesn't have a native way to do this *yet*. Fortunately, SAGE includes
Maxima and Maxima can do this:

sage: maxima('sum(1/n^2, n, 1, inf), simpsum')
%pi^2/6
sage: maxima('sum(1/n^4, n, 1, inf), simpsum')
%pi^4/90
sage: maxima('sum(1/n^3, n, 1, inf), simpsum')
zeta(3)

See http://beige.ucs.indiana.edu/P573/node19.html for some examples
of how to do finite and infinite sums using maxima (and mathematica).

> 6) is it possible to import a maple worksheet ?

No.

> 7) finally, is there a faq ? My questions are pretty basic and were
> probably answered many times.

I don't think there is a faq yet. I wish there were.

> Thanks for this great software,

You're welcome. Enjoy!

William

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