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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
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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
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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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