Re: [math-fun] cos(x)=x question

Hello, Yes, this is the argument, the length of the proposed approximation is about the length in number of digits of precision. Just a coïncidence, and there are others, very few can be explained fully. here are a few of them : http://mathworld.wolfram.com/AlmostInteger.html http://fr.wikipedia.org/wiki/Nombre_presque_entier (in french), http://en.wikipedia.org/wiki/Almost_integer Simon Plouffe