π.md

Code

 awk 'BEGIN{srand(); while (++i) {pi += ((rand()**2+rand()**2) <= 1); if ((i%10e5) == 0) printf "%f\n",4*pi/i;}}'

Result

3.140352
3.139892
3.140535
3.140230
3.140933
3.141291
3.140802
3.140831
3.140884
3.141042
3.141076
3.141043
3.141200
3.141418
3.141367
3.141500
...