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    Re: Plotting vs calculating Position
    From: Mike Burkes
    Date: 2015 Jul 31, 16:52 -0700
    Hi Bob, my sentiments exactly, just barely made it thru HS, now I buy math books and have a ball working problems but you might want to check spelling of Alzheimer's(no t). I could not resist,great stuff you folks are posting.
    Mike Burkes

    From: NoReply_Goethe@fer3.com
    To: m_burkes---.com
    Date: Thu, 30 Jul 2015 14:16:33 -0700
    Subject: [NavList] Re: Plotting vs calculating Position

    >> You really only need the first quadrant of the sine function to fill in all the rest by reflection of the argument and/or flipping the sign of the result. Right?<<
    Right you are!
    I took calculus and trigonometry 45 years ago in high school.  Had I had a teacher with the first ounce of curiosity about the world in which we live, I am confident that she could have captivated my attention.  As it is, I have only discovered the magic of sines and cosines over the last year of learning more about sight reduction.  Ah well...better late than never.  The plus of learning this kind of thing later in life is that, allegedly, it should help reduce my chance of getting Altzheimer's.
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