Constants that are included:

1. Archimedes constant, also known as Pi.

2. Euler's constant, also known as the natural number.

3. Meissel-Mertens constant

4. Khinchin's constant

5. Glaisher-Kinkelin constant

6. Euler-Mascheroni constant

In case you haven't already done so:

opam install merlin ocp-indent dune utop

Example usage in the terminal:

1. Go to the Archimedes folder.

2. Enter 'dune utop lib' which should bring you into the utop interface:

dune utop lib

3. Once in utop, open the set of tools you need:

open Lib;;

4. For a naive monte-carlo approximation to the Archimedes constant(aka pi) with n samples:

Archimedes.mc_pi 10;;

5. For a Newton-Euler approximation to the Archimedes' constant:

Archimedes.newton_euler 20;;

6. Finally, for Ramanujan's approximation to the Archimedes' constant:

Archimedes.ramanujan 10;;