Kaffee verschluckt
Very easy. You are talking about the value of Pi.
That is actually 3 not 3.14.......
The digits after the decimal forms a geometric series and
it will converge to the value zero. So, 3.14.....=3.00=3.
Nobody still calculated the precise value of Pi. In future
they will and apply advenced Mathematics to prove the value of Pi=3.
*Kaffee vom Monitor wisch*
(... und 1+4 =5, da steckt ne 2 und ne 3 drin...)
Oli 
missi