Another update from ingydotnet^djgoku

Task/Trabb-Pardo-Knuth-algorithm/Scala/trabb-pardo-knuth-algorithm.scala

@@ -0,0 +1,26 @@
+object TPKa extends App {
+    final val numbers = scala.collection.mutable.MutableList[Double]()
+    final val in = new java.util.Scanner(System.in)
+    while (numbers.length < CAPACITY) {
+        print("enter a number: ")
+        try {
+            numbers += in.nextDouble()
+        }
+        catch {
+            case _: Exception =>
+                in.next()
+                println("invalid input, try again")
+        }
+    }
+
+    numbers reverseMap { x =>
+        val fx = Math.pow(Math.abs(x), .5D) + 5D * (Math.pow(x, 3))
+        if (fx < THRESHOLD)
+            print("%8.3f -> %8.3f\n".format(x, fx))
+        else
+            print("%8.3f -> %s\n".format(x, Double.PositiveInfinity.toString))
+    }
+
+    private final val THRESHOLD = 400D
+    private final val CAPACITY = 11
+}