Function addVector

source/vector.js:6–12

(a, b)

export const scaleVector = ([x, y], n) => [x * n, y * n];

export const addVector = (a, b) => {
  const [ax, ay] = a;
  const [bx, by] = b;
  const x = ax + bx;
  const y = ay + by;
  return [x, y];
};

export const subtractVector = (a, b) => {
  const [ax, ay] = a;