On Mon, Nov 17, 2014 at 3:13 PM, <jeanbigbo...@gmail.com> wrote: > Thanks for all the replies: > > Aaron Meurer: > I tried preview. It looks like a LaTeX installation is required and on > this particular system I'm on, I am not allowed to install it - same with > the other suggested package. Is there a workaround, perhaps directing the > use of MathJax? >
A little Googling reveals https://github.com/agrbin/svgtex, which uses MathJax to generate an SVG (there are plenty of tools you can then use to convert that to PNG). Also https://github.com/jmorais/mathjax-to-png, although I'm not really clear how that works. > Jason Moore: > I looked at the source code you suggested and did some experimentation. > It led me to: > > http://stackoverflow.com/questions/24223695/python-spyder-display-symbolic-math > > This is tantalizingly close to what I'd like. It works for some > expressions such as the one in the SO example. > > from IPython.display import Image, displayfrom IPython.lib.latextools import > latex_to_png > > eq = r'F(k) = \int_{-\infty}^{\infty} f(x) e^{2\pi i k} dx' > data = latex_to_png(eq, wrap=True) > display(Image(data=data)) > > Expressions involving the \left and \right operators return errors: > eq = r'\begin{bmatrix}\frac{1}{2 a} \left(- b + \sqrt{- 4 a c + > b^{2}}\right), & - \frac{1}{2 a} \left(b + \sqrt{- 4 a c + > b^{2}}\right)\end{bmatrix}' > > ... > > ValueError: > \begin{bmatrix}\frac{1}{2 a} \left(- b + \sqrt{- 4 a c + b^{2}}\right), & - > \frac{1}{2 a} \left(b + \sqrt{- 4 a c + b^{2}}\right)\end{bmatrix} > ^ > Unknown symbol: \begin (at char 0), (line:1, col:1) > > There is another case where \left and \right cause errors without there being > a matrix in the expression. > > I guess this means it is using matplotlib under the covers, and it doesn't support matrices. Aaron Meurer > > In any case, supposing I can generate the PNG. Is there a way to save the > image programmatically? (I tab-completed on several of the imported > package functions but nothing jumped out at me). > > Thanks, > > -- JBB > > On Monday, November 17, 2014 11:33:06 AM UTC-8, Aaron Meurer wrote: >> >> I believe the preview() function does what you want. >> http://docs.sympy.org/latest/modules/printing.html# >> sympy.printing.preview.preview. >> >> Aaron Meurer >> >> On Mon, Nov 17, 2014 at 9:21 AM, Jason Moore <moore...@gmail.com> wrote: >> >>> There should be some functions in the ipython machinery in sympy that >>> creates pngs from the latex printer using matplotlib. See: >>> >>> https://github.com/sympy/sympy/blob/master/sympy/ >>> interactive/printing.py#L34 >>> >>> >>> Jason >>> moorepants.info >>> +01 530-601-9791 >>> >>> On Mon, Nov 17, 2014 at 9:23 AM, Dario Beraldi <dario....@gmail.com> >>> wrote: >>> >>>> >>>> >>>> On Monday, November 17, 2014 8:13:56 AM UTC, jeanbi...@gmail.com wrote: >>>>> >>>>> I'd love to be able to save a sympy LaTeX-ified result as an image >>>>> file to export into other documents. In my business I have to create >>>>> Powerpoint and am trying python-pptx for this. It allows incorporating >>>>> images programmatically. >>>>> >>>>> I've searched the sympy documentation and other sources but >>>>> surprisingly have not found anything for equations. I believe that plots >>>>> can be saved. I'm sure I've missed something. >>>>> >>>>> Suggestions greatly appreciated. >>>>> >>>>> --- JBB >>>>> >>>> >>>> Google'ing around I found latexmath2png >>>> <http://code.google.com/p/latexmath2png/> (*A versatile program and >>>> Python module to allow conversion of LaTeX math equations in to PNG >>>> images*) >>>> which seems to do what you are after? (I don't anything about it, just >>>> found it right now). >>>> >>>> Hope it helps! >>>> >>>> >>>> -- >>>> You received this message because you are subscribed to the Google >>>> Groups "sympy" group. >>>> To unsubscribe from this group and stop receiving emails from it, send >>>> an email to sympy+un...@googlegroups.com. >>>> To post to this group, send email to sy...@googlegroups.com. >>>> Visit this group at http://groups.google.com/group/sympy. >>>> To view this discussion on the web visit https://groups.google.com/d/ >>>> msgid/sympy/faa755d6-1795-41c4-a523-f90092732537%40googlegroups.com >>>> <https://groups.google.com/d/msgid/sympy/faa755d6-1795-41c4-a523-f90092732537%40googlegroups.com?utm_medium=email&utm_source=footer> >>>> . >>>> >>>> For more options, visit https://groups.google.com/d/optout. >>>> >>> >>> -- >>> You received this message because you are subscribed to the Google >>> Groups "sympy" group. >>> To unsubscribe from this group and stop receiving emails from it, send >>> an email to sympy+un...@googlegroups.com. >>> To post to this group, send email to sy...@googlegroups.com. >>> Visit this group at http://groups.google.com/group/sympy. >>> To view this discussion on the web visit https://groups.google.com/d/ >>> msgid/sympy/CAP7f1AgRJceWP7-bCsJE1MJAQqa14Tm9upzEabCnGnjKf >>> qDpcQ%40mail.gmail.com >>> <https://groups.google.com/d/msgid/sympy/CAP7f1AgRJceWP7-bCsJE1MJAQqa14Tm9upzEabCnGnjKfqDpcQ%40mail.gmail.com?utm_medium=email&utm_source=footer> >>> . >>> >>> For more options, visit https://groups.google.com/d/optout. >>> >> >> -- > You received this message because you are subscribed to the Google Groups > "sympy" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to sympy+unsubscr...@googlegroups.com. > To post to this group, send email to sympy@googlegroups.com. > Visit this group at http://groups.google.com/group/sympy. > To view this discussion on the web visit > https://groups.google.com/d/msgid/sympy/49fdfb37-572d-4e41-89f8-59497568385f%40googlegroups.com > <https://groups.google.com/d/msgid/sympy/49fdfb37-572d-4e41-89f8-59497568385f%40googlegroups.com?utm_medium=email&utm_source=footer> > . > > For more options, visit https://groups.google.com/d/optout. > -- You received this message because you are subscribed to the Google Groups "sympy" group. 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