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File:SunflowerModel.svg

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Original file (SVG file, nominally 512 × 512 pixels, file size: 147 KB)

Summary

Description

Illustration of Vogel's formula of the pattern of sunflower florets (see article) for n from 1 to 500, using the polar coordinates equations and . Can be produced using the following MATLAB code: 

n=1:500;
r=sqrt(n);
t=2*pi/((sqrt(5)+1)/2+1)*n;
plot(r.*cos(t),-r.*sin(t),'o')
Date
Source Own work
Author Doron, cmglee
Other versions


Licensing

I, the copyright holder of this work, hereby publish it under the following license:
GNU head 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.
w:en:Creative Commons
attribution share alike 		This file is licensed under the Creative Commons Attribution-Share Alike 3.0 Unported 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.
This licensing tag was added to this file as part of the GFDL licensing update.

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inception

12 September 2007

File history

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Date/TimeThumbnailDimensionsUserComment
current21:27, 29 April 2017Thumbnail for version as of 21:27, 29 April 2017512 × 512 (147 KB)CmgleeAdd interactivity and colour, and mirror vertically as y-axis is normally positive upwards by mathematical convention.
02:53, 7 March 2012Thumbnail for version as of 02:53, 7 March 2012600 × 600 (23 KB)AnonMoosadjusting margins, slight cleanup
01:39, 31 January 2011Thumbnail for version as of 01:39, 31 January 2011500 × 500 (28 KB)Renamed user KdYpUvMgTsvg was broken in firefox
21:59, 11 September 2007Thumbnail for version as of 21:59, 11 September 2007500 × 500 (28 KB)Doron{{Information |Description= |Source=self-made |Date= |Author= Doron }}

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