NavList:
A Community Devoted to the Preservation and Practice of Celestial Navigation and Other Methods of Traditional Wayfinding
Re: The Darn Old Cocked Hat - the sequel 1
From: Hewitt Schlereth
Date: 2013 Mar 15, 10:42 -0700
From: Hewitt Schlereth
Date: 2013 Mar 15, 10:42 -0700
John - Hey, neat-o. A three-dimension bell-curve. So, any horizontal slice would contain the shots the same distance from spot-on; and viewed from the top, slices taken at equal vertical spacings would look like an archery target after lots of use? Hewitt Sent from my iPad On Mar 15, 2013, at 6:17 AM, "John Karl"wrote: > Hanno, et al., > > We don't need numerical simulation to see that the probability around a ship's location, which is determined by two independent normal distributions of lat(x) & lon(y), is another normal distribution in the distance from the ship, r: > > Prob = exp(x/s)*2 exp(y/s)*2 = exp[(x/s)*2 + (y/s)*2] = exp(r/s)*2 > > which, of course, is maximum at r = 0. Plot is attached with ship at 15,15. > > JK > > ---------------------------------------------------------------- > NavList message boards and member settings: www.fer3.com/NavList > Members may optionally receive posts by email. > To cancel email delivery, send a message to NoMail[at]fer3.com > ---------------------------------------------------------------- > > Attached File: http://fer3.com/arc/imgx/GAUSSIAN.jpg > > > : http://fer3.com/arc/m2.aspx?i=122872 > >