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    Re: Request for simple trig formula
    From: Mitch B Burrill
    Date: 2003 Apr 15, 09:29 -0400

    take both ratios of the two smaller sides (like, a/b and b/a), the angles are 
    the inverse tangents (atan) of these two numbers.
     -----Original Message-----
    From:   David Weilacher [mailto:daveweilacher@EARTHLINK.NET]
    Sent:   Tuesday, April 15, 2003 6:04 AM
    Subject:             Request for simple trig formula
    I need a favor.
    I don't recall the simple trig formulas and don't have the mental 
    where-with-all to find anything using a search engine.  I think it is because 
    my mind just doesn't index the way they do.
    If I know the lengths of 3 sides of a triangle and one angle (90), how do I 
    determine the two remaining angles.
    I do own a fancy calculator capable of sin, cos stuff.
    What I would like to come away with are the side-angle-side, angle-side-angle, 
    and side-side-side formulas so that I can write them down in my address book 
    for future reference.
    Thank you.
    PS: I am attempting to solve a problem indirectly related to navigation.
    Dave Weilacher
    .US Coast Guard licensed captain
    .    #889968
    .ASA instructor evaluator and celestial
    .    navigation instructor #990800
    .IBM AS400 RPG contract programmer

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