Problem Statement

Generate a collection filled with   1000   normally distributed random (or pseudo-random) numbers with a mean of   1.0   and a   standard deviation   of   0.5 Many libraries only generate uniformly distributed random numbers. If so, you may use one of these algorithms.

Let's start with the solution:

let pi = 4.0 *. atan(1.0)

let random_gaussian = () => {
  1.0 +.
  sqrt(-2.0 *. log(Random.float(1.0))) *.
  cos(2.0 *. pi *. Random.float(1.0))
}

let a = Belt.Array.makeBy(1000, (_) => random_gaussian ())

for i in 0 to 10 {
  Js.log(a[i])
}