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  1. kchewy80

    inverse secant function

    I am trying to use the inverse secant formula given in the help menu but I keep getting the wrong answer. Here is what I am using: angle(i) = Atn(a / Sqr(a * a - 1)) + _ Sgn((a) - 1 * (2 * Atn(1)) angle(i) = angle(i) * 180 / PI When a is 1.414 the angle is calculated to be 172...

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