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Old November 24th, 2007, 01:43 AM
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Default Re: Algebra and Trigonometry for Lighting Designers

Quote:
Originally Posted by derekleffew View Post
So I've been thinking about my future book titled Algebra and Trigonometry for Lighting Designers. Filled with, you know, fun stuff like this:
Deriving a lighting fixture's multiplication factor from its beam angle using trigonometry:
[Excel format] Multiplying Factor(MF) =2*TAN((x/2)*PI()/180),
where x is the beam angle in degrees.
Note: the "*PI()/180" portion of the equation is just to force Excel to express the answer in degrees rather than radians, and therefore isn't needed if calculating by hand.
I've realized I need collaborators. Other than "W=VA" and "P=IE in your E=IR," what are some other formulas/calculations you use regularly? This may end up just being a pamphlet rather than a book, and will in inevitably become a wiki entry, so any/all help is appreciated.
I made a smart excel.
http://www.divshare.com/download/2880495-a92

You'll notice it is all password protected...The password is controlbooth2007, I trust you guys to rearrange as you want it, as I'm going to put this in my portfolio for upcoming stuff, I'd appreciate it if you just left my name on it.
Enjoy. Distribute.
Hopefully this is a good first post.

Last edited by phil000; November 25th, 2007 at 03:04 AM..
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