File:Bipolar coordinates.png

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

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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.
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Author user:WillowW: This image was made by me using Xfig and is licensed under the GFDL.
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24 October 2006

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a93844eb08475cb7daf95e1ddd1c841fd55aae94

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Date/TimeThumbnailDimensionsUserComment
current14:34, 24 October 2006Thumbnail for version as of 14:34, 24 October 2006246 × 280 (4 KB)WillowWUpdated to label the point P. Otherwise, the same as first version.
14:18, 24 October 2006Thumbnail for version as of 14:18, 24 October 2006246 × 289 (4 KB)WillowWIllustration 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. T
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