This type of approximation is made at a finite number of points. 這種近似法是在有限數目的節點處來進行的。
While for the sinusoidal approximation method, a detail derivation of the amplitude of each sinusoidal function is re-derived for completeness. 為完整性，文中亦詳細推導正弦函數近似法中各個頻率之振幅。
The adequacy of this approximation is considered later. 這種近似方法的適用性將在後面再討論。
Semiclassical approximation has comprehensive applications in modern physics. 在現代物理學中，半經典近似方法有著廣泛的應用。
