Opened 13 years ago
Last modified 7 years ago
#3985 new enhancement
Asymptote plotting
Reported by: | kcrisman | Owned by: | was |
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Priority: | major | Milestone: | sage-6.4 |
Component: | graphics | Keywords: | |
Cc: | Merged in: | ||
Authors: | Reviewers: | ||
Report Upstream: | N/A | Work issues: | |
Branch: | Commit: | ||
Dependencies: | Stopgaps: |
Description (last modified by )
Still need improvement on plotting of asymptote of e.g. tan or 1/x, especially when detect_poles != True. Ideally one has an output similar to
sage: plot(tan,-20,20).show(ymin=-5, ymax=5)
but just straight out of plot.
Change History (9)
comment:1 Changed 12 years ago by
comment:2 Changed 12 years ago by
I doubt it, because e.g. the tangent example above usually won't get 'inf' or '-inf' as something in ydata; it just has weird things happen near asymptotes because of the adaptive plotting, and also will occasionally get random points that are really far from y=0. I'll try it when 3.1.2 comes out, though.
It's actually kind of fun to evaluate the above command again and again, seeing what you get each time... If you try a few times you can get a ydata point that is 10000 or even more, which requires only that plot "guesses" a number within 10^{-5} of pi/2 for the xdata...
comment:3 Changed 12 years ago by
- Description modified (diff)
Just FYI, #6035 partially resolves this.
However,
sage: plot(tan,-20,20, detect_poles='show') sage: plot(tan,-20,20, detect_poles=True)
shows that 'show' still keeps the "missing" points (which include not just the asymptote but also the high slopes on either side) and that True doesn't create a uniform height as one might desire in the Description.
Description changed to indicate this successful partial resolution, however!
comment:4 Changed 11 years ago by
- Report Upstream set to N/A
- Type changed from defect to enhancement
comment:5 Changed 8 years ago by
See also #8341.
comment:6 Changed 8 years ago by
- Milestone changed from sage-5.11 to sage-5.12
comment:7 Changed 7 years ago by
- Milestone changed from sage-6.1 to sage-6.2
comment:8 Changed 7 years ago by
- Milestone changed from sage-6.2 to sage-6.3
comment:9 Changed 7 years ago by
- Milestone changed from sage-6.3 to sage-6.4
Hmm, I am wondering if #3907 fixed this issue?
Cheers,
Michael