2007/8/27, Chaddaï Fouché <[EMAIL PROTECTED]>: > You've got a which is the radius of the circle, and b which is the > length of the arc, thus you've got the angle between the two red > radiuses : u = b / a > So with basic trigonometry, we can deduce a - x = a * cos(u/2) > x = a *( cos(u/2) - 1) > > -- > Jedaï >
Actually that would be x = a * (1 - cos (b/(2a))) Ooops o_O -- Jedaï _______________________________________________ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe
