It takes quite a while to learn how to use the notebook just by
googling around (search google for 'sage %hide' for instance) so I
hope someone can point me in a better direction.
One simple thing I would like to be able to do is to enter a bunch of
forumula's, say integrals or ODEs, at the very beginning of my session
and display them each in nicely formatted latex, as they are entered.
Sort of like a typical maple session, where each equation is typeset
as its entered. However, the closest I get to such output is to 1)
assign the formula to a variable, 2) assign the latex(forumula) to a
variable, 3) jsmath(this latex variable) and 4) click 'evaluate' under
the cell.
Thats a bit of work and I've found that if I have several jsmath()
displays in a row and hit evaluate, only one of them shows up
typeset. I know there has to be an easier way and it probably
requires various settings in the dropdown boxes above the worksheet
and some % declares and so on, and I would like to find a good
resource to read about these options.
For instance, the otherwise excellent 'an-invitation-to-sage.pdf'
whitepaper has a nice screenshot of a notebook that seems to do what I
want, with the helpful comment:
-------------------------------------------------------
Here are the commands used to create the output in the Notebook
session
in the above screenshot:
Sage Notebook
a,b,c,d,x,y=var(’a,b,c,d,x,y’)
show(solve(a*xˆ2+b*x+c==0,x))
show(solve(a*xˆ3+b*x+c==0,x))
solve(a*x+b*y==0,c*x+d*y==0,x,y)
-------------------------------------------------------
but when I type them in to my notebook cell nothing happens, and when
I click 'evaluate' under the cell I just get an error message. Also,
I can't tell if the whitepaper's screenshot was generated after each
of these 'show' commands, or if all of the commands are executed at
once via the 'evaluate' button. Is there, for instance, a mode where
'evaluate' is implicit after each carriage return?
Likewise, searching google for 'sage latex' turns up some interesting
messages, but nothing that helps me set the notebook up to display
formulae. Another forinstance: I would like to know how the author
of http://sagenb.com/home/pub/365/ managed to have the nicely latex'd
comments above each of the cells.
I am still playing around and experimenting with the notebook but
there have to be some shortcuts to learning all this, and I'd
appreciate any pointers to websites, archives, and so on.
Thanks,
J
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