File:Bipolar coordinates.svg
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Original file (SVG file, nominally 700 × 700 pixels, file size: 14 KB)
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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 | PNG version, made by user WillowW |
| Author | vector graphics: Puck04 |
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| SVG development |  This diagram was created with Adobe Illustrator. |
Licensing
I, the copyright holder of this work, hereby publish it under the following license:
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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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File history
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 18:20, 27 July 2021 | | 700 × 700 (14 KB) | Puck04 | == {{int:filedesc}} == {{Information |Description={{en|1=Illustration of the bipolar coordinate system.<p>'''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.}} |Source=PNG version, made by user WillowW |Date=2021-07-27 |Author=vector graphics: [... |
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