On Mon, Jun 7, 2010 at 12:56 AM, Dmitry Semikin
<[email protected]> wrote:
> Hi,
> I'm watching for the ability to create html block, which references
> sage varible in notebook. So, the questions:
>
> 1) is it possible to reference sage variable from TiniMCE html block?
>
> or
>
> 2) is it possible to generate normal (not '<pre>') html block as
> output of sage cell
>
> Rationale:
> It is much more convenient to read problem statement and results of
> calculations as reach text (mean html), which has introductory words
> and formatted with bolds, italic, headers, includes typesetted
> fromulas etc.
>
> But now as I cannot reference sage variable (e. g. with result) within
> html block, I have to manually copy its value, obtained as result of
> calculation cell (or defined within sage cell) to the html block
> (which is not very convenient), or to be satisfied with poor output of
> calculation cell (or look for varables definition within cell itself).
>
> Example of intended usage:
>
> sage_cell {
> %hide
> #auto
> a = 10
> b = 20
> }
>
> html_block {
> <h1>Problem statement</h1>
> <p>We are solving the problem about ... </p>
> <p>Solution is given with $$ c = a + b, $$ </p>
> <p>where</p>
> <p>$a = <reference to sage a variable> $ - descriptionn of variable
> a...
> <p>$b = <reference to sage b variable> $ - description of variable
> b...
> }
>
> sage_cell {
> c = a + b
> # actually inmplementation of some long calculation goes here. May be
> with %hide option
> }
>
> html_block {
> <p>The result of calculation is</p>
> <p>$$ c = <reference to c sage variable>$$</p>
> }
>
> Of course, real life example would be longer.
>
> I did not find any mentions of such kind of feature in sage
> documentation, nor in this group.
>
There is no such feature in Sage.
> I tried to implement second way of solution (see above) using html()
> sage command. But the prolems arisen. For some reason result of html()
> function is put into the '<pre>' tag in the output (although
> documentation says, that it shoud not), so it gives inconvenient
> results.
The html(...) function does not put <pre> tags in the output:
sage: html("2")
<html><font color='black'>2</font></html>
sage:
The problem is that the <pre> tags are already there -- they aren't
introduced by the html command.
> In more details, my idea was to make something like this:
> sage_cell {
> %hide
> #auto
> a = 10
> b = 20
>
> html(
> '<h1>Problem statement</h1>'+
> '<p>Introductory text here (with html markup).. It can be very very
> very very very long.</p>'+
> '<p>$$ a = {0} $$</p>'.format(a) +
> '<p>$$ b = {0} $$</p>'.format(b) +
> '<p>... more text here, if needed ...</p>'
> )
> }
>
> As a result of cell evaluation I would like to get necely formatted
> (html) output wich includes numbers actually used in calculations. The
> result is almost acceptable, except one thing. As it is '<pre>', the
> paragraph content is not wrapped into page width, which is
> inacceptable. Besides, it is printed with monospaced font, which is
> not fatal, but not desireable.
A hack is that you can turn off <pre>..., e.g.,
html('</pre>Stuff that is NOT pre<pre> and stuff that is pre')
>
> Note, there is still ability to obtain nicely typesetted output using
> show() function like this:
>
> sage_cell{
> a_i = 12.3456789
> show('Acceleratin of i-th particle:\n$a_i = {0:.2f}'.format(float(a_i))
> +
> ' \\; \\mathrm{\\frac{m}{s^2}}$')
> }
>
> Although, there are still some clashes with braces used for format()
> function and for math markup (in the example given string is splitted
> to two for this reason). Either you should remember to escape back-
> slashes and explicitly convert sage-typed variables to float (or int)
> to use formatting.
>
>
>
>
> If someone knows some some standard methods or tricks for doing
> things, discussed above, share them.
>
> Thanks,
> Dmitry.
>
> --
> To post to this group, send email to [email protected]
> To unsubscribe from this group, send email to
> [email protected]
> For more options, visit this group at
> http://groups.google.com/group/sage-support
> URL: http://www.sagemath.org
>
--
William Stein
Professor of Mathematics
University of Washington
http://wstein.org
--
To post to this group, send email to [email protected]
To unsubscribe from this group, send email to
[email protected]
For more options, visit this group at
http://groups.google.com/group/sage-support
URL: http://www.sagemath.org
