On Thu, Mar 12, 2009 at 1:36 PM, Jose Guzman <n...@neurohost.org> wrote:
>
> Dear colleagues,
>
> I've just discovered this wonderful thing called Sage (I am a completely
> newbie, my apologizes in advance...), and I have to admit that I am
> impressed with Sage!!!. I started yesterday, and came along the tutorial
> already. I still miss some more documentation...specially related with
> worksheet use/configuration (I did not find any other way to combine
> LaTeX, html and sage to create nice worksheets like the ones I saw
> today. I simply start a cell with %htmlo %latex or %sage).
Click on the big "Edit" button and put arbitrary html between the {{{
}}} compute
blocks, e.g.,
anything in html
{{{
2+2
///
4
}}}
more html.
You can also put math in $$'s in the html.
In sage >= 3.3 you can also do "shift click" to insert a cell and you
get a GUI editor for entering nice text between cells.
William
>
> Anyway, I was playing around with the limits, and after checking the
> short tutorial
> (http://sage.math.washington.edu/home/elliottd/calctut/limits.html) I
> wanted to try something by myself. I found the following inconvenience.
>
>
> sage: g=9.81
> sage: t=var('t')
> sage: limit(2*g*(t^2-1)/(t-1),t=1)
> >>> gives me 39
>
> However, if I simplify the equation and calculate the limit...
> sage: limit(2*g*(t+1),t=1)
> >> gives me the good value 39.276
>
> Did I do something wrong?
>
> Thank you very much in advance!
>
>
> >
>
--
William Stein
Associate Professor of Mathematics
University of Washington
http://wstein.org
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