Angular gridlines in sage plot

Question

My ubuntu sage installation still has some problems. So I installed it on my mac to get started. I was wondering if there is some way to make non-vertical gridlines in Sage.

For example, I used

show(L,gridlines=True)

for some graphics object L. Now I want to rotate just the y axis gridline by 30 degrees. How can I do it? Thanks.

Accepted Answer

I don't know any option to do that at once, but you can use something like:

var('x y')
line = 2*x + y
p = plot(...)
grid = sum(implicit_plot(line+k,...)  for k in srange(-1,1,0.2))
(p + grid).show()

to add the grid manually.

Angular gridlines in sage plot

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