pi . Machin: pi/4 = 4*arctan (1/5) - arctan (1/239).

:
1. pi . pi 10 :
pi 10
2. pi . . .
3. 1 (1000000) workout :) 


 java.math.BigDecimal 

  pi {
          ( args [])  NumberFormatException {
         INT = Integer.parseInt (args [0]) 
         pi = computePi () .toString () 
        INT freq [] =  INT [10] 
         (INT  = 0   < 10="">

: java.sun.