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Thread: names of angle systems

  1. Oct 2nd, 2009, 10:44 AM #1
    .paul.
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    Question names of angle systems

    what is the name of the angle system where N = 90 (then negative counting down to 0 i.e. - 89, -88,...0) E = 0, (counting up to) S = 90 and W = 0???

    also, what is the name of the angle system where N,E,S,W = 270,0,90,180???

    thanks to anyone who can help.


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  2. Oct 2nd, 2009, 02:48 PM #2
    Shaggy Hiker
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    Re: names of angle systems

    I'd call the first one E-centric, but only to make a pun. I've never actually heard of either one.
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  3. Oct 2nd, 2009, 08:47 PM #3
    jemidiah
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    Re: names of angle systems

    If you meant to have some negatives in the first system, it's the one used in the complex plane; in trig, angles of that form are called "reference angles". The second system is the second common parametrization of a circle, though I don't have a formal name for it either.

    I suspect that names either don't exist or would be unhelpful to your audience, but I don't know your application.
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