Data commit

Task/Evaluate-binomial-coefficients/Scala/evaluate-binomial-coefficients-1.scala

@@ -0,0 +1,11 @@
+object Binomial {
+   def main(args: Array[String]): Unit = {
+      val n=5
+      val k=3
+      val result=binomialCoefficient(n,k)
+      println("The Binomial Coefficient of %d and %d equals %d.".format(n, k, result))
+   }
+
+   def binomialCoefficient(n:Int, k:Int)=fact(n) / (fact(k) * fact(n-k))
+   def fact(n:Int):Int=if (n==0) 1 else n*fact(n-1)
+}

Task/Evaluate-binomial-coefficients/Scala/evaluate-binomial-coefficients-2.scala

@@ -0,0 +1,8 @@
+object Binomial extends App {
+  def binomialCoefficient(n: Int, k: Int) =
+    (BigInt(n - k + 1) to n).product /
+    (BigInt(1) to k).product
+
+  val Array(n, k) = args.map(_.toInt)
+  println("The Binomial Coefficient of %d and %d equals %,3d.".format(n, k, binomialCoefficient(n, k)))
+}

Task/Evaluate-binomial-coefficients/Scala/evaluate-binomial-coefficients-3.scala

@@ -0,0 +1,6 @@
+  def bico(n: Long, k: Long): Long = (n, k) match {
+    case (n, 0) => 1
+    case (0, k) => 0
+    case (n, k) => bico(n - 1, k - 1) + bico(n - 1, k)
+  }
+  println("bico(5,3) = " + bico(5, 3))