typescript用の数学関数まとめ

went5-math.ts

const Gravity = 9.8;
export const DegreeToRadian = (degree: number) => {
  return degree * (Math.PI / 180);
};

export const ProjectileMotionX = (v0: number, degree: number, time: number) => {
  return v0 * Math.cos(DegreeToRadian(degree)) * time;
};

export const ProjectileMotionY = (v0: number, degree: number, time: number) => {
  return (
    v0 * Math.sin(DegreeToRadian(degree)) * time -
    (1 / 2) * Gravity * time * time
  );
};