Opened 15 years ago

Closed 15 years ago

## #1737 closed defect (fixed)

# [with patch at #1833; needs review] ctl-c doesn't exit job in parametric_plot3d

Reported by: | wdj | Owned by: | was |
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Priority: | major | Milestone: | sage-2.10.1 |

Component: | graphics | Keywords: | |

Cc: | Merged in: | ||

Authors: | Reviewers: | ||

Report Upstream: | N/A | Work issues: | |

Branch: | Commit: | ||

Dependencies: | Stopgaps: |

### Description (last modified by )

The following paraterization of the Mobius strip takes a very long time and won't quit when ctl-c is used:

sage: u,v = var("u,v") sage: parametric_plot3d([cos(u)*(1+v*cos(u/2)), sin(u)*(1+v*cos(u/2)), v*sin(u/2)], (-2, 2), (-2, 2)).show() ^D ^CControl-C pressed. Interrupting Maxima. Please wait a few seconds...

This error message repeats ever time you proess ctl-c.

### Change History (4)

### comment:1 Changed 15 years ago by

### comment:2 Changed 15 years ago by

Description: | modified (diff) |
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Milestone: | → sage-2.10.1 |

### comment:3 Changed 15 years ago by

Summary: | ctl-c doesn't exit job in parametric_plot3d → [with patch at #1833; needs review] ctl-c doesn't exit job in parametric_plot3d |
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This is fixed by #1833.

### comment:4 Changed 15 years ago by

Resolution: | → fixed |
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Status: | new → closed |

Merged in Sage 2.10.1.alpha1 (patch from #1833)

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This works much faster: sage: parametric_plot3d([0.5*cos(u)*(1+v*cos(u/2)), 0.5*sin(u)*(1+v*cos(u/2)), v*sin(u/2)], (u,-2, 2), (v,-2, 2)).show()

and is more efficient.