tasks a-s

Task/Nth-root/Scala/nth-root.scala

@@ -0,0 +1,16 @@
+object NthRoot {
+
+  def main(args: Array[String]) {
+    println(nthroot(3, 32))
+  }
+
+  def nthroot1(n: Int, a: Double): Double = {
+    def loop(x0: Double) : Double = {
+      val x1 = (1.0d/n * ((n - 1) * x0 + a/math.pow(x0, n-1)))
+      if (x0 <= x1) x0
+      else loop(x1)
+    }
+
+    return loop(a/2)
+  }
+}