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    dohddub's Avatar
    dohddub Posts: 1, Reputation: 1
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    #1

    Jun 8, 2011, 02:53 AM
    Transmission Factor Correction: not sure how to arrive at 51.78 deg?
    Tan a = 0.95/0.75 = 1.27
    a = Tan-1 1.27 = 51.78deg?
    ebaines's Avatar
    ebaines Posts: 12,131, Reputation: 1307
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    #2

    Jun 8, 2011, 05:42 AM

    dohddub: since this is your first post it's impossible for us to tell what problem you are trying to work out. Yes, the arctan of 1.27 is indeed 51.78 degrees, but I suspect that your real question has to do with the factors 0.95 and 0.75. Also, you rounded 0.95/0.75 to 1.27, which is 3 significant digits - that's OK but then you shouldn't express the arctan(1.27) to 4 significant digits. If you actually calculated arctan(0.95/0.75) you would see it equals 51.71 degrees.
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