Method cosineTo

packages/@stdlib/misc/src/vec2.ts:77–81

(vec: Vec2)

    return Math.atan2(this.cross(vec), this.dot(vec));
  }
  cosineTo(vec: Vec2) {
    const dotProduct = this.dot(vec);
    const magnitudeProduct = this.length() * vec.length();
    return dotProduct / magnitudeProduct;
  }
  rotate(angle: number): Vec2 {
    const cos = Math.cos(angle);
    const sin = Math.sin(angle);