File:Laplacian of the indicator v2.jpg
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Summary
| Description |
English: An approximation of the negative indicator function of an ellipse in the plane (left), the derivative in the direction normal to the boundary (middle), and its Laplacian (right). In the limit, the right-most graph goes to the (negative) Laplacian of the indicator. Purely intuitively speaking, the right-most graph resembles an elliptic castle with a castle-wall on the inside and a moat in front of it; in the limit, the wall and moat become infinitely high and deep (and narrow). |
| Date | |
| Source |
Using the program Mathematica |
| Author | Rutgerjanlange |
Licensing
Rutgerjanlange at English Wikipedia, the copyright holder of this work, hereby publishes it under the following licenses:
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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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Original upload log
The original description page was here. All following user names refer to en.wikipedia.
- 2012-12-17 16:17 Rutgerjanlange 516×122× (8083 bytes) Uploading a self-made file using [[Wikipedia:File_Upload_Wizard|File Upload Wizard]]
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File history
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 21:56, 17 February 2025 | | 516 × 122 (8 KB) | wikimediacommons>Sasha Foka | Uploaded while editing "Лапласіан індикатора" on uk.wikipedia.org |
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