Vector plot

[Ingo Dahn]

The following code prints in SageCell blue lines instead of colored vectors. In CoCalc the presentation is correct:

v1=vector([1,2,3])

v2=vector([4,5,6])

p1=plot(v1)

p2=plot(v2,color='red')

p1+p2

[William Stein]

Hello Ingo,

I looked further and the reason it is wrong in SageCell and right in
CoCalc is because SageCell uses Sage-9.0
and CoCalc sage worksheets use Sage-8.9 by default. That this
breaks is a *bug* in 3d graphics that was
introduced going from Sage-8.9 to Sage-9.0, and I think it would be
present everywhere.

I've made this issue on trac: https://trac.sagemath.org/ticket/29206

William

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William (http://wstein.org)