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A Community Devoted to the Preservation and Practice of Celestial Navigation and Other Methods of Traditional Wayfinding
Re: Need formulas for arcsin and arctan
From: Paul Hirose
Date: 2006 Mar 27, 10:54 -0800
From: Paul Hirose
Date: 2006 Mar 27, 10:54 -0800
Everyone with Windows has a calculator with trig functions. You just have to know where to look. In Windows XP, click the Start button, Accessories, Calculator. If the standard (non-scientific) calculator appears, click View, Scientific. To get arc sine of .5 for example, put .5 in the calculator display, click the Inv box, then click sin. The result should be 30. The Windows calc has a hellacious number of digits. The square root of 2 gives 1.4142135623730950488016887242097. I have no idea if all these digits are valid. It is strange that there's no square root key. You have to click Inv then the x^2 key to extract a square root. I'd give up the x^3 key in exchange for a square root key.
