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Gridlines, ticks and the like in polar coordinates

asked 2020-02-23 20:14:11 -0600

JC gravatar image

updated 2020-02-24 04:39:22 -0600

eric_g gravatar image

Hello to everyone,

I'd like to produce a polar plot with thecorresponding "polar grid" in it (i.e. the lines corresponding to $\theta = $ constant, and the circles $r = $ constant appearing. Also, I would like to have something like the tick markers. I guess I could do something like this manually, but seems very unelegant... An idea?

JC

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answered 2020-02-24 04:38:45 -0600

eric_g gravatar image

For the gridlines, you can do:

sage: E = EuclideanSpace(2)
sage: polar.<r, theta> = E.polar_coordinates()
sage: polar.plot(E.cartesian_coordinates())

image description

See this page for all plot options. For instance:

sage: polar.plot(E.cartesian_coordinates(), number_values={r: 9, theta: 17}, color='green')

image description

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Asked: 2020-02-23 20:14:11 -0600

Seen: 34 times

Last updated: Feb 24