The code is for a jupyter notebook of course. Il giorno mercoledì 24 luglio 2019 18:40:56 UTC+2, Francesco ha scritto: > > I have installed sagemath in a docker container . I have made a simple > sagemath code like this: > sines = [plot(c*sin(x), (-2*pi,2*pi), color=Color(c,0,0), ymin=-1, ymax=1) > for c in sxrange(0,1,.2)] > > a = animate(sines) > a.show() > > > instead of obtaining an animation in the browser ( like a sagemath > installed compiling from source ), i obtain an error message like this: > > /opt/sage/local/lib/python2.7/site-packages/sage/repl/rich_output/display_manager.py:590: > RichReprWarning: Exception in _rich_repr_ while displaying object: > Error: Neither ImageMagick nor ffmpeg appears to be installed. Saving an > animation to a GIF file or displaying an animation requires one of these > packages, so please install one of them and try again. > > See www.imagemagick.org and www.ffmpeg.org for more information. > RichReprWarning, > > > > Can you help me ? > Installing sagemath with docker is much faster then compiling from source ! > > >
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