File:Bipolar coordinates.png

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Bipolar_coordinates.png(246 × 280 pixels, file size: 4 KB, MIME type: image/png)

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Summary

Description
English: Illustration of the bipolar coordinate system. σ is the angle between the two foci and the point in question, whereas τ is the logarithm of the ratio of the distances. The corresponding σ and τ isosurfaces are shown in red and blue, respectively.
Date
Source Own work
Author user:WillowW: This image was made by me using Xfig and is licensed under the GFDL.
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I, the copyright holder of this work, hereby publish it under the following license:
GNU head Permission is granted to copy, distribute and/or modify this document under the terms of the GNU Free Documentation License, Version 1.2 or any later version published by the Free Software Foundation; with no Invariant Sections, no Front-Cover Texts, and no Back-Cover Texts. A copy of the license is included in the section entitled GNU Free Documentation License.
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This licensing tag was added to this file as part of the GFDL licensing update.

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24 October 2006

image/png

a93844eb08475cb7daf95e1ddd1c841fd55aae94

3,925 byte

280 pixel

246 pixel

File history

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Date/TimeThumbnailDimensionsUserComment
current15:34, 24 October 2006Thumbnail for version as of 15:34, 24 October 2006246 × 280 (4 KB)wikimediacommons>WillowWUpdated to label the point P. Otherwise, the same as first version.

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