Data update

Task/Vector/JavaScript/vector.js

@@ -0,0 +1,40 @@
+class Vector {
+  constructor(x, y) {
+    this.x = x;
+    this.y = y;
+    this.length = Math.hypot(this.x, this.y);
+    this.angle = Math.atan2(this.y, this.x);
+  }
+
+  add(v) {
+    const sum = new Vector(this.x + v.x, this.y + v.y);
+    return sum;
+  }
+
+  sub(v) {
+    const diff = new Vector(this.x - v.x, this.y - v.y);
+    return diff;
+  }
+
+  mul(c) {
+    const scaled = new Vector(c * this.x, c * this.y);
+    return scaled;
+  }
+
+  div(c) {
+    const scaled = new Vector(this.x / c, this.y / c);
+    return scaled;
+  }
+
+  dot(v) {
+    return this.x * v.x + this.y * v.y;
+  }
+
+  print() {
+    console.log(`2D vector: (${this.x}, ${this.y})`);
+  }
+
+  polar() {
+    console.log(`2D vector (polar): (${this.length}, ${this.angle})`);
+  }
+}