# use matplotlib to produce mathathematical expression only

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## use matplotlib to produce mathathematical expression only

 Hello, I want to produce a eps file of following mathematical expression: r'$F(x)=p*\frac{1}{s1\sqrt{2\pi}}*e^{-\frac{1}{2}*(\frac{x-m}{s1})}+(1-p)*\frac{1}{s1\sqrt{2\pi}}*e^{-\frac{1}{2}*(\frac{x-m}{s1})}$' is it possible to somehow missuse matplotlib for that to produce only the function without any other plot things? Or is there a better python library within scipy? I don't want to install the complete latex libraries just for producing this single eps file. thank you /johannes -- NEU: FreePhone - kostenlos mobil telefonieren und surfen! Jetzt informieren: http://www.gmx.net/de/go/freephone_______________________________________________ SciPy-User mailing list [hidden email] http://mail.scipy.org/mailman/listinfo/scipy-user
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## Re: use matplotlib to produce mathathematical expression only

 On Mon, May 16, 2011 at 08:21, Johannes Radinger <[hidden email]> wrote: > Hello, > > I want to produce a eps file of following mathematical expression: > r'$F(x)=p*\frac{1}{s1\sqrt{2\pi}}*e^{-\frac{1}{2}*(\frac{x-m}{s1})}+(1-p)*\frac{1}{s1\sqrt{2\pi}}*e^{-\frac{1}{2}*(\frac{x-m}{s1})}$' > > is it possible to somehow missuse matplotlib for that to produce only the function without any other plot things? Or is there a better python library within scipy? I don't want to install the complete latex libraries just for producing this single eps file. Check out mathtex. It is matplotlib's TeX parsing engine and renderer broken out into a separate library: http://code.google.com/p/mathtex/Also, please send matplotlib questions just to the matplotlib list. Thanks. -- Robert Kern "I have come to believe that the whole world is an enigma, a harmless enigma that is made terrible by our own mad attempt to interpret it as though it had an underlying truth."   -- Umberto Eco _______________________________________________ SciPy-User mailing list [hidden email] http://mail.scipy.org/mailman/listinfo/scipy-user
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## Re: [Matplotlib-users] use matplotlib to produce mathathematical expression only

 -------- Original-Nachricht -------- > Datum: Mon, 16 May 2011 08:28:49 -0500 > Von: Robert Kern <[hidden email]> > An: SciPy Users List <[hidden email]> > CC: [hidden email] > Betreff: Re: [Matplotlib-users] [SciPy-User] use matplotlib to produce mathathematical expression only > On Mon, May 16, 2011 at 08:21, Johannes Radinger <[hidden email]> wrote: > > Hello, > > > > I want to produce a eps file of following mathematical expression: > > > r'$F(x)=p*\frac{1}{s1\sqrt{2\pi}}*e^{-\frac{1}{2}*(\frac{x-m}{s1})}+(1-p)*\frac{1}{s1\sqrt{2\pi}}*e^{-\frac{1}{2}*(\frac{x-m}{s1})}$' > > > > is it possible to somehow missuse matplotlib for that to produce only > the function without any other plot things? Or is there a better python > library within scipy? I don't want to install the complete latex libraries just > for producing this single eps file. > > Check out mathtex. It is matplotlib's TeX parsing engine and renderer > broken out into a separate library: > > http://code.google.com/p/mathtex/I also thought about mathtex but don't know how to use my mathematical expression without a plot of axis etc. any suggestions? I just want to have the formated math expression as eps and I don't know how to do it, still after reading in the matplotlib-manual. /johannes > > Also, please send matplotlib questions just to the matplotlib list. > Thanks. > > -- > Robert Kern > > "I have come to believe that the whole world is an enigma, a harmless > enigma that is made terrible by our own mad attempt to interpret it as > though it had an underlying truth." >   -- Umberto Eco > > ------------------------------------------------------------------------------ > Achieve unprecedented app performance and reliability > What every C/C++ and Fortran developer should know. > Learn how Intel has extended the reach of its next-generation tools > to help boost performance applications - inlcuding clusters. > http://p.sf.net/sfu/intel-dev2devmay> _______________________________________________ > Matplotlib-users mailing list > [hidden email] > https://lists.sourceforge.net/lists/listinfo/matplotlib-users-- NEU: FreePhone - kostenlos mobil telefonieren und surfen! Jetzt informieren: http://www.gmx.net/de/go/freephone_______________________________________________ SciPy-User mailing list [hidden email] http://mail.scipy.org/mailman/listinfo/scipy-user
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## Re: [Matplotlib-users] use matplotlib to produce mathathematical expression only

 On Mon, May 16, 2011 at 09:23, Johannes Radinger <[hidden email]> wrote: > > -------- Original-Nachricht -------- >> Datum: Mon, 16 May 2011 08:28:49 -0500 >> Von: Robert Kern <[hidden email]> >> An: SciPy Users List <[hidden email]> >> CC: [hidden email] >> Betreff: Re: [Matplotlib-users] [SciPy-User] use matplotlib to produce        mathathematical expression only > >> On Mon, May 16, 2011 at 08:21, Johannes Radinger <[hidden email]> wrote: >> > Hello, >> > >> > I want to produce a eps file of following mathematical expression: >> > >> r'$F(x)=p*\frac{1}{s1\sqrt{2\pi}}*e^{-\frac{1}{2}*(\frac{x-m}{s1})}+(1-p)*\frac{1}{s1\sqrt{2\pi}}*e^{-\frac{1}{2}*(\frac{x-m}{s1})}$' >> > >> > is it possible to somehow missuse matplotlib for that to produce only >> the function without any other plot things? Or is there a better python >> library within scipy? I don't want to install the complete latex libraries just >> for producing this single eps file. >> >> Check out mathtex. It is matplotlib's TeX parsing engine and renderer >> broken out into a separate library: >> >> http://code.google.com/p/mathtex/> > I also thought about mathtex but don't know how to use my mathematical expression without a plot of axis etc. any suggestions? I just want to have the formated math expression as eps and I don't know how to do it, still after reading in the matplotlib-manual. The mathtex that I link to above is a separate library, not a part of matplotlib. Please follow the link. -- Robert Kern "I have come to believe that the whole world is an enigma, a harmless enigma that is made terrible by our own mad attempt to interpret it as though it had an underlying truth."   -- Umberto Eco _______________________________________________ SciPy-User mailing list [hidden email] http://mail.scipy.org/mailman/listinfo/scipy-user
 In reply to this post by sinnfluter > On Mon, May 16, 2011 at 08:21, Johannes Radinger gmx.at> wrote: > Hello, > > I want to produce a eps file of following mathematical expression: > r'$F(x)=p*\frac{1}{s1\sqrt{2\pi}}*e^{-\frac{1}{2}*(\frac{x-m}{s1})}+(1-p) *\frac{1}{s1\sqrt{2\pi}}*e^{-\frac{1}{2}*(\frac{x-m}{s1})}$' > > is it possible to somehow missuse matplotlib for that to produce only > the function without any other plot things? Or is there a better python > library within scipy? I don't want to install the complete latex libraries > just for producing this single eps file. > > /johannes > Before IPython's new display system (http://thread.gmane.org/gmane.comp.python.ipython.devel/5899) I used to use the following function to quickly visualise latex formulae: def eqview(latex_expr,fontsize=28,dpi=80):     from matplotlib.figure import Figure     from matplotlib.backends.backend_agg import RendererAgg     from pylab import figtext, gcf, close, show, figure     latex_expr = '$'+latex_expr+'$'     fig = Figure()     h = fig.text(0.5, 0.5, latex_expr,                  fontsize = fontsize,                  horizontalalignment = 'center',                  verticalalignment= 'center')     bbox = h.get_window_extent(RendererAgg(15,15,dpi))     del fig     figure(figsize=(1.1*bbox.width/dpi,1.25*bbox.height/dpi), dpi=dpi)     h = figtext(0.5, 0.5, latex_expr,                 fontsize = fontsize,                 horizontalalignment = 'center',                 verticalalignment = 'center')     fig = gcf()     fig.set_facecolor('w')     show() The call to show could easily be replaced by a call to fig.savefig. NB: I'm not a matplotlib guru so this may not be the most efficient implementaion, seemed to do the job though. HTH, Dave _______________________________________________ SciPy-User mailing list [hidden email] http://mail.scipy.org/mailman/listinfo/scipy-user
 -------- Original-Nachricht -------- > Datum: Tue, 17 May 2011 08:16:58 +0000 (UTC) > Von: Dave Hirschfeld <[hidden email]> > An: [hidden email] > Betreff: Re: [SciPy-User] [Matplotlib-users] use matplotlib to produce mathathematical expression only > > On Mon, May 16, 2011 at 08:21, Johannes Radinger gmx.at> > wrote: > > Hello, > > > > I want to produce a eps file of following mathematical expression: > > > r'$F(x)=p*\frac{1}{s1\sqrt{2\pi}}*e^{-\frac{1}{2}*(\frac{x-m}{s1})}+(1-p) > *\frac{1}{s1\sqrt{2\pi}}*e^{-\frac{1}{2}*(\frac{x-m}{s1})}$' > > > > is it possible to somehow missuse matplotlib for that to produce only > > the function without any other plot things? Or is there a better python > > library within scipy? I don't want to install the complete latex > libraries > > just for producing this single eps file. > > > > /johannes > > > > Before IPython's new display system > (http://thread.gmane.org/gmane.comp.python.ipython.devel/5899) I used to > use > the following function to quickly visualise latex formulae: > > def eqview(latex_expr,fontsize=28,dpi=80): >     from matplotlib.figure import Figure >     from matplotlib.backends.backend_agg import RendererAgg >     from pylab import figtext, gcf, close, show, figure >     latex_expr = '$'+latex_expr+'$' >     fig = Figure() >     h = fig.text(0.5, 0.5, latex_expr, >                  fontsize = fontsize, >                  horizontalalignment = 'center', >                  verticalalignment= 'center') >     bbox = h.get_window_extent(RendererAgg(15,15,dpi)) >     del fig >     figure(figsize=(1.1*bbox.width/dpi,1.25*bbox.height/dpi), dpi=dpi) >     h = figtext(0.5, 0.5, latex_expr, >                 fontsize = fontsize, >                 horizontalalignment = 'center', >                 verticalalignment = 'center') >     fig = gcf() >     fig.set_facecolor('w') >     show() > > The call to show could easily be replaced by a call to fig.savefig. > > NB: I'm not a matplotlib guru so this may not be the most efficient > implementaion, seemed to do the job though. > > HTH, > Dave Thank you Dave that works perfectly!! Just need to use double \\ in the latex_expr /johannes > > > > _______________________________________________ > SciPy-User mailing list > [hidden email] > http://mail.scipy.org/mailman/listinfo/scipy-user-- NEU: FreePhone - kostenlos mobil telefonieren und surfen! Jetzt informieren: http://www.gmx.net/de/go/freephone_______________________________________________ SciPy-User mailing list [hidden email] http://mail.scipy.org/mailman/listinfo/scipy-user