Initial data commit

Task/Arithmetic-Complex/JavaScript/arithmetic-complex.js

@@ -0,0 +1,55 @@
+function Complex(r, i) {
+	this.r = r;
+	this.i = i;
+}
+
+Complex.add = function() {
+	var num = arguments[0];
+	
+	for(var i = 1, ilim = arguments.length; i < ilim; i += 1){
+		num.r += arguments[i].r;
+		num.i += arguments[i].i;
+	}
+	
+	return num;
+}
+
+Complex.multiply = function() {
+	var num = arguments[0];
+	
+	for(var i = 1, ilim = arguments.length; i < ilim; i += 1){
+		num.r = (num.r * arguments[i].r) - (num.i * arguments[i].i);
+		num.i = (num.i * arguments[i].r) - (num.r * arguments[i].i);
+	}
+	
+	return num;
+}
+
+Complex.negate = function (z) {
+	return new Complex(-1*z.r, -1*z.i);
+}
+
+Complex.invert = function(z) {
+	var denom = Math.pow(z.r,2) + Math.pow(z.i,2);
+	return new Complex(z.r/denom, -1*z.i/denom);
+}
+
+Complex.conjugate = function(z) {
+	return new Complex(z.r, -1*z.i);
+}
+
+// BONUSES!
+
+
+Complex.prototype.toString = function() {
+	return this.r === 0 && this.i === 0
+          ? "0"
+          : (this.r !== 0 ? this.r : "")
+          + ((this.r !== 0 || this.i < 0) && this.i !== 0
+              ? (this.i > 0 ? "+" : "-")
+              : "" ) + ( this.i !== 0 ? Math.abs(this.i) + "i" : "" );
+}
+
+Complex.prototype.getMod = function() {
+	return Math.sqrt( Math.pow(this.r,2) , Math.pow(this.i,2) )
+}