Data commit

Task/Feigenbaum-constant-calculation/Swift/feigenbaum-constant-calculation.swift

@@ -0,0 +1,35 @@
+import Foundation
+
+func feigenbaum(iterations: Int = 13) {
+  var a = 0.0
+  var a1 = 1.0
+  var a2 = 0.0
+  var d = 0.0
+  var d1 = 3.2
+
+  print(" i       d")
+
+  for i in 2...iterations {
+    a = a1 + (a1 - a2) / d1
+
+    for _ in 1...10 {
+      var x = 0.0
+      var y = 0.0
+
+      for _ in 1...1<<i {
+        y = 1.0 - 2.0 * y * x
+        x = a - x * x
+      }
+
+      a -= x / y
+    }
+
+    d = (a1 - a2) / (a - a1)
+    d1 = d
+    (a1, a2) = (a, a1)
+
+    print(String(format: "%2d    %.8f", i, d))
+  }
+}
+
+feigenbaum()