The Law of Cosines

New Proving of the Law of Cosines and the Law of Sines in En

E~n中n维余弦定理和正弦定理的新证明

The essence of the procedure lays in using the law of cosines and the corner formula .

本程序精髓在于运用了余弦定理及符号函数。

Based on the Lambert law of cosines , a form of ladar equation , which is easy to apply , is deduced . An effective method of calculating the maximum detectable distance is proposed based on the theory of signal detects statistics .

根据朗伯余弦定律推导出激光雷达方程的一种便于使用的形式，根据统计信号检测理论提出了一种计算作用距离的有效方法。