Data commit

Task/Eulers-identity/Java/eulers-identity.java

@@ -0,0 +1,30 @@
+public class EulerIdentity {
+
+    public static void main(String[] args) {
+        System.out.println("e ^ (i*Pi) + 1 = " + (new Complex(0, Math.PI).exp()).add(new Complex(1, 0)));
+    }
+
+    public static class Complex {
+
+        private double x, y;
+
+        public Complex(double re, double im) {
+            x = re;
+            y = im;
+        }
+
+        public Complex exp() {
+            double exp = Math.exp(x);
+            return new Complex(exp * Math.cos(y), exp * Math.sin(y));
+        }
+
+        public Complex add(Complex a) {
+            return new Complex(x + a.x, y + a.y);
+        }
+
+        @Override
+        public String toString() {
+            return x + " + " + y + "i";
+        }
+    }
+}