The probability that two random numbers in the range [0,1] are 0.35 apart.

InterruptProbability.scala

/**
  * The probability that two numbers in the range [0,1] are 0.35 apart.
  *
  * See discussion at https://math.stackexchange.com/a/2182330
  * Which explains this chart
  * http://www.mathsisfun.com/data/grapher-equation.html?func1=x-y%3D0.35&func2=y-x%3D0.35&xmin=-0.2147&xmax=1.512&ymin=-0.01944&ymax=1.276
  */
object InterruptProbability {
  import scala.util.Random.nextFloat
  def main(args: Array[String]): Unit = {
    val samples = 1e7.toInt
    val distance = 0.35f
    val percent = twoNodes(samples,distance)
    println(f"two nodes $percent%1.2f")
  }

  private def twoNodes(samples: Int, distance: Float) = {
    val hits = Stream.continually((nextFloat(), nextFloat())).take(samples).foldLeft(0) {
      case (count, (x, y)) if Math.abs(x - y) > distance => count + 1
      case (count, _) => count
    }
    100 * hits.toFloat / samples
  }

}