I'm encountering a problem with graphics_array and latex use in plots.
The following command works fine
p1=plot(x^2, (x, -pi, pi), color='blue')
G=graphics_array(((p1,p1),(p1,p1)))
G.show(figsize=[8,8])
But if latex code is added to the plot legend it produced and error
p1=plot(x^2, (x, -pi, pi), color='blue',legend_label="$\frac{\partial
f}{\partial x}$")
G=graphics_array(((p1,p1),(p1,p1)))
G.show(figsize=[8,8])
Traceback (click to the left of this block for traceback)
...
KeyError: 'pop(): dictionary is empty'
What exactly is the problem here and is there a workaround? Is there
any alternative way to give plots individual titles in a
graphics_array?
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