The function "view(" doesn't seem to work with jupyter notebook

asked 2019-12-26 15:54:13 +0100

21 ●1 ●5

updated 2019-12-30 13:55:20 +0100

I'm sorry if the question was already answered somewhere, but I did not find out an answer by myself:

In the "old" sagemath notebooks, there was a function "view" to display latex that MathJax cannot display. For instance the sage documentation proposes the following:

from sage.graphs.graph_latex import setup_latex_preamble    
setup_latex_preamble()    
latex.engine('pdflatex')    
latex.add_to_mathjax_avoid_list('tikzpicture')    
view(graphs.CompleteGraph(4))

In the "old" sage notebook, this produces a png version of a graph (compiled from latex), which is inserted into the output of the cell
In the Jupyter netbook, by contrast, it opens a pdf version of the graph into an external window.

Is there some way to obtain, in the Jupyter notebook, the same behaviour as in the "old netbook" ?

Thanks

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Actually, the example graphs.CompleteGraph(4) is a bad example because pretty_print already does what I wish, for this example (it is the example that was in the documentation of sage).

But the question remains with, for instance view(Tableau([[1,2],[3]])), for which pretty_print doesn't work (due to limitation of MathJax with respect to tables).

But if someone is able to explain to me how pretty_print(graphs.CompleteGraph(4)) works, that will already be something (it displays more than what latex(graphs.CompleteGraph(4)) has).

Sebastien ( 2019-12-27 12:05:32 +0100 )edit

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def my_view(e,density=150,extra=""): tf=tmp_filename(name="png_cell",ext=".png") sage.misc.latex.png(e,tf,density=density) pretty_print(html('<img src="http://localhost:8888/tree/tmp_sage_cells/%s" %s>'%(tf.split(r".sage/temp/")[1],extra)))

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