Opened 7 years ago

Last modified 6 years ago

#18368 needs_info defect

(complex) plot should ignore unsigned infinity value

Reported by: kcrisman Owned by:
Priority: minor Milestone: sage-6.7
Component: graphics Keywords:
Cc: paulmasson Merged in:
Authors: Reviewers:
Report Upstream: Reported upstream. Developers acknowledge bug. Work issues:
Branch: Commit:
Dependencies: Stopgaps:

Status badges

Description

So the Riemann zeta function has an unsigned infinity.

sage: sig = .01
sage: end = 30
sage: complex_plot(zeta,(0,1),(0.01,end),aspect_ratio=1/end)+line([(sig,0),(sig,end)],linestyle='--')
Launched png viewer for Graphics object consisting of 2 graphics primitives
sage: complex_plot(zeta,(0,1),(0,end),aspect_ratio=1/end)+line([(sig,0),(sig,end)],linestyle='--')
ValueError: unsigned infinity cannot be represented in a float

This should not prevent it from plotting in complex_plot, especially since it plots fine in one variable at that point (asymptote shows up etc.).

Change History (1)

comment:1 Changed 6 years ago by paulmasson

  • Cc paulmasson added
  • Report Upstream changed from N/A to Reported upstream. Developers acknowledge bug.
  • Status changed from new to needs_info

Only partly addressed by #21034.

Doctest in functions/log.py needs to be updated when fully fixed.

Version 0, edited 6 years ago by paulmasson (next)
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