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File:Pentagram-phi.svg

Original file (SVG file, nominally 576 × 576 pixels, file size: 3 KB)

Summary

Description I am the author. This SVG file is intended to replace File:Pentagram2.png, as the pentagram depicted in that PNG file is not all that accurate or symmetrical; additionally, SVG files have infinite resolution. The pentagram and the colored lines indicating phi ratios depicted in this SVG file are very accurate: to eight decimal places (with correct rounding, as I used PARI/GP to calculate the measurements). The pentagram in this SVG file is centered at its circumradius within the viewport. Also, the colors of the colored lines indicating phi ratios are in a logical order within this SVG file (whereas they were out of order in the PNG): starting with red for the longest line, then green for the next shorter line, then blue, then "wrapping around" the color band with magenta for the shortest line (and the lines are stacked atop each other in that order). Lastly, this SVG file does not include superfluous colored lines (as with the PNG file), as all point-to-point line lengths (including points at intersections) are contained by picking any one of the five golden gnomons contained in the pentagram. Whereas the PNG file not only contained superfluous colored lines (i.e., two green lines in it), but it failed to illustrate a golden gnomon via colored lines. It is intended that this economy in use of colored lines (by restricting them to only one golden gnomon) will better help to illustrate the elegant geometrical and mathematical nature of the pentagram.
Date 12 November 2006 (original upload date)
Source Transferred from en.wikipedia to Commons.
Author Jamiemichelle at English Wikipedia
SVG development
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Licensing

Public domain This work has been released into the public domain by its author, Jamiemichelle at English Wikipedia. This applies worldwide.
In some countries this may not be legally possible; if so:
Jamiemichelle grants anyone the right to use this work for any purpose, without any conditions, unless such conditions are required by law.

Original upload log

The original description page was here. All following user names refer to en.wikipedia.
  • 2006-11-12 03:29 Jamiemichelle 576×576×0 (1483 bytes) I am the author. This SVG file is intended to replace Pentagram2.png, as the pentagram depicted in that PNG file is not all that accurate or symmetrical; additionally, SVG files have infinite resolution. The pentagram and the colored lines indicating phi

Captions

A regular pentagram colored to distinguish its line segments of different lengths. The four lengths are in golden ratio to one another.

Items portrayed in this file

depicts

copyright status

copyrighted, dedicated to the public domain by copyright holder

copyright license

released into the public domain by the copyright holder

File history

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Date/TimeThumbnailDimensionsUserComment
current20:42, 31 August 2009Thumbnail for version as of 20:42, 31 August 2009576 × 576 (3 KB)Salix albaFor some reason it didn't look right. Try this.
20:37, 31 August 2009Thumbnail for version as of 20:37, 31 August 2009576 × 576 (3 KB)Salix albaCorrect intersection points between blue a purple so lie in middle as in File:Pentagram-phi-mathematically-correct.svg
15:10, 6 November 2007Thumbnail for version as of 15:10, 6 November 2007576 × 576 (3 KB)QWerkcorner made looking better
20:12, 9 September 2007Thumbnail for version as of 20:12, 9 September 2007576 × 576 (1 KB)Otso Huuska{{Information |Description=I am the author. This SVG file is intended to replace Pentagram2.png, as the pentagram depicted in that PNG file is not all that accurate or symmetrical; additionally, SVG files have infinite resolution. The pentagram and the co

Global file usage

The following other wikis use this file:

Quelle: https://en.wikipedia.org/wiki/File:Pentagram-phi.svg