Data commit

Task/Golden-ratio-Convergence/Java/golden-ratio-convergence.java

@@ -0,0 +1,20 @@
+public class GoldenRatio {
+    static void iterate() {
+        double oldPhi = 1.0, phi = 1.0, limit = 1e-5;
+        int iters = 0;
+        while (true) {
+            phi = 1.0 + 1.0 / oldPhi;
+            iters++;
+            if (Math.abs(phi - oldPhi) <= limit) break;
+            oldPhi = phi;
+        }
+        System.out.printf("Final value of phi : %16.14f\n", phi);
+        double actualPhi = (1.0 + Math.sqrt(5.0)) / 2.0;
+        System.out.printf("Number of iterations : %d\n", iters);
+        System.out.printf("Error (approx) : %16.14f\n", phi - actualPhi);
+    }
+
+    public static void main(String[] args) {
+        iterate();
+    }
+}