Almkvist-Giullera formula for pi: Difference between revisions

This task uses [[Isqrt_(integer_square_root)_of_X#F.23]]

<lang fsharp>

let factorial(n:bigint)=MathNet.Numerics.SpecialFunctions.Factorial n

let fN g=(532I*g*g+126I*g+9I)*(factorial(6I*g))/(3I*(factorial g)**6)

pi to 70 decimal places is 3.14159265358979323846264338327950288419716939937510582097494459230781640

</pre>

=={{header|Factor}}==

{{works with|Factor|0.99 2020-08-14}}