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Change the default number of points in plotting

asked 2015-12-20 13:26:04 +0200

marmistrz gravatar image

By default the plot function has only 200 points:

 sage.plot.plot.plot(funcs, exclude=None, fillalpha=0.5, fillcolor='automatic', detect_poles=False, plot_points=200, thickness=1, adaptive_tolerance=0.01, rgbcolor=(0, 0, 1), adaptive_recursion=5, aspect_ratio='automatic', alpha=1, legend_label=None, fill=False, *args, **kwds)

But this look awful when plotting for example $f(x) = \frac{\sin x }{x}$. Since my machine is quite fast, I'd like to set the default to 50000 points.

Is this possible?

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Perhaps you would also like to check out figsize options if you want to obtain a huge image (otherwise is there a reason to make plot_points greater then the x-resolution (in pixels) of the resulting image?)

Eugene gravatar imageEugene ( 2015-12-27 08:36:31 +0200 )edit

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answered 2015-12-21 03:07:02 +0200

vdelecroix gravatar image

You can not set it as a default, but you can add the option

sage: plot(cos(1/x),  (x, 0, 1), plot_points=5000)

I did not understand what you meant with sin(x)/x since the plot I get looks nice.

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Asked: 2015-12-20 13:26:04 +0200

Seen: 258 times

Last updated: Dec 21 '15