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Building Sundials

3.5 | 2 ratings Rate this file 3 Downloads (last 30 days) File Size: 24 KB File ID: #5481 Version:
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Building Sundials


Ned Gulley (view profile)


12 Jul 2004 (Updated )

Create your own sundial with MATLAB.

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If carefully built, a sundial is perfectly capable of keeping accurate time. The problem is that you need a different sundial for every combination of latitude, longitude, and day of the year. Fortunately MATLABĀ® can make this a manageable problem. By turning this procedure around, you can also use MATLAB to tell you which way is north.
The algorithms used here for MATLAB sundial creation were adapted from

MATLAB release MATLAB 7 (R14)
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Comments and Ratings (2)
27 Sep 2005 IDRIS ELLIS

why not just some simple trigonometry? After all, all of the original ALGORITHMS were in that formay: stuff having to put it into some programme which I do not have the machine for: the TI-81 is more than sufficent to the task, if one has the proper ALGORITHMS.

15 Mar 2005 martyn dorey

Fantastic. Would be good to include a vertical mounted sundial too.

19 Jun 2009 1.1

Updating copyright line.

01 Sep 2016

Updated license

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