JT
Posts:
1,386
Registered:
4/7/12


Re: Calculate circumreference and area of circle without Pi is easy
Posted:
May 6, 2013 10:43 PM


On 7 Maj, 04:23, JT <jonas.thornv...@gmail.com> wrote: > On 7 Maj, 04:18, donstockba...@hotmail.com wrote: > > > > > > > > > > > On Monday, May 6, 2013 9:03:27 PM UTC5, JT wrote: > > > Knowing that a hexagon built by isocles we can split them into right > > > > triangles and have hy^20.5hy^2=b^2. > > > > And from there we create a new dodecagon knowing the difference > > > > between base and hypotenuse we can calculate required heights of new > > > > vertices, we plug it in and get hypotenuse of triangle forming new > > > > vertice. > > > > We repeat all this splitting hexagon, dodecagon, 24, 48, 96, 192... > > > > recursively until sought smoothness of the circle is aquired while > > > > adding vertices and triangle areas. > > > Only one calculation is needed if you just know pi. > > Yes but Pi is approximation, my answer would be a fraction and > therefor exact for the sought and aquired smoothness.
Well a vertice dependent fraction relative the original hypotenuse of hexagon. So if we set hypotenuse to 1 for any radius we get a general solution fraction for the required smoothness, that need just be multiplicated with the the split hexagon hypotenuse length to get the circumreference.

