
Create a program to continually calculate and output the next decimal digit of   



π


{\displaystyle \pi }

   (pi).

The program should continue forever (until it is aborted by the user) calculating and outputting each decimal digit in succession.

The output should be a decimal sequence beginning   3.14159265 ...



Note: this task is about   calculating   pi.   For information on built-in pi constants see Real constants and functions.



Related Task Arithmetic-geometric mean/Calculate Pi

pi=: 3 :0
  echo"0 '3.1'
  i=. 0
  while. i=. i + 1 do.
    echo -/ 1 10 * <.@o. 10x ^ 1 0 + i
  end.
)