Cool Perl 6 one liners vol. 2: computing Pi in a series

Madhava-Leibniz-series-v2.sh

#You can also copy/paste this directly into the command line if perl6 is installed
raku -e "say π  - 4 * ([+]  <1 -1> <</<<  (1,3,5,7,9...10000))  "
# This is an implementation of the Madhava-Lebniz series: https://en.wikipedia.org/wiki/Leibniz_formula_for_%CF%80 
# And a better, or at least shorter, version of https://gist.github.com/JJ/23801c82b218b25da7fc8831b7c331ad
# Instead of creating two series and combining them, this combines 1,-1 and the series of odd numbers 
# by applying them successively: 1 divided by the first, -1 by the second, and so on. This creates exactly the same effect. 
# It is faster and you only need to change one number, the 10000, to compute Pi with a bigger precision.