File:Silver triangle spiral.svg
Size of this PNG preview of this SVG file: 270 × 320 pixels. Other resolutions: 202 × 240 pixels | 405 × 480 pixels | 648 × 768 pixels | 864 × 1,024 pixels | 1,728 × 2,048 pixels.
Original file (SVG file, nominally 270 × 320 pixels, file size: 4 KB)
 | This is a file from the Wikimedia Commons. Information from its description page there is shown below. Commons is a freely licensed media file repository. You can help. |
Summary
| Description |
English: The silver triangle is formed by connecting two adjacent vertices of a regular octagon to its centre point. With triangle base 2 and height σ, the centre of rotation has Cartesian coordinates (σ/4σ + 3, σ + 2/4σ + 3) relative to the circumcenter. The logarithmic spiral has an expansion rate of σ + 1/2 for every 225 degrees of rotation. The silver gnomons have edges in ratios σ ∶ √(σ + 1) ∶ 1. Silver ratio σ satisfies σ2 = 2σ + 1. |
| Date | |
| Source | Own work |
| Author | Zilverspreeuw |
| SVG development |  This vector image was created with a text editor. |
Licensing
I, the copyright holder of this work, hereby publish it under the following license:
This file is licensed under the Creative Commons Attribution-Share Alike 4.0 International license.
- You are free:
- to share – to copy, distribute and transmit the work
- to remix – to adapt the work
- Under the following conditions:
- attribution – You must give appropriate credit, provide a link to the license, and indicate if changes were made. You may do so in any reasonable manner, but not in any way that suggests the licensor endorses you or your use.
- share alike – If you remix, transform, or build upon the material, you must distribute your contributions under the same or compatible license as the original.
File history
Click on a date/time to view the file as it appeared at that time.
| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 16:41, 14 January 2025 | | 270 × 320 (4 KB) | Zilverspreeuw | Uploaded own work with UploadWizard |
File usage
The following page uses this file:
