plot sage Graphics() from jupyter notebok in CoCalc

asked 2017-09-08 14:24:35 +0100

ADuC812
152 ●3 ●6 ●14

updated 2017-09-08 14:27:44 +0100

I want to use sage as a python library from jupyter notebok in CoCalc. I have a problem with Sage plotting:

from sage.all import *
var('x')
plot(sin(x)).show()

This code outputs "Graphics object consisting of 1 graphics primitive".

Pyplot plotting works fine. There are a number of old posts with the similar problem ( ex. https://ask.sagemath.org/question/109...), some of them recommend changing matplotlib backend with %matplotlib inline which does not help. Is there a way to output sage Graphics() inline without using pyplot?

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To potential answerers: It seems like this might not be specific to CoCalc, but just in general Jupyter.

kcrisman ( 2017-09-08 18:36:29 +0100 )edit

In your Jupyter worksheet, are you using the Sage kernel or the Python kernel?

You can select the "Kernel" menu and change kernel to use the SageMath kernel. This might solve your plotting issue. If not, can you make the worksheet public and link to it? This might help understand the problem.

slelievre ( 2017-09-09 05:53:42 +0100 )edit

My idea is to use Python kernel but import sage as a library (actually, only specific features, incl. plotting)

ADuC812 ( 2017-09-10 18:44:42 +0100 )edit

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Just for completeness - I include here pyplot solution which is also not perfect but at least does not require temporary files

import matplotlib.pyplot as plt
from sage.all import *
var('x')
Gr=plot(sin(x))
figu = plt.figure() # you may set the size here
main_plot = figu.add_axes((0.2,0.2,0.7,0.7))
Gr.matplotlib('a.svg', figure=figu, sub=main_plot)
figu.show()

ADuC812 ( 2017-09-14 10:24:09 +0100 )edit

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plot sage Graphics() from jupyter notebok in CoCalc

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