一种弯道丈量的简便计算方法——余弦定理在计算相应基准点和固定基准点中的应用

A SIMPLIFIED METHOD OF CALCULATING THE CURVE MEASUREMENT——THE USAGE OF THE LAW OF COSINE IN CALCULATING CORRESPONDING BASE POINTS AND FIXED BASE POINTS

本文给出了一种弯道丈量的计算方法,利用余弦公式,可求得基准点至测定点的各种数据。较之已有的计算方法,简化了计算过程,提高了计算的准确性,避免了不必要的误差。

This paper presents a method of calculating curve measure-ments based on the theorem of cosine, which simplifies the calculating procedure and can lead to solve every kind of data between base points and any points measured. It raises the accuracy and avoids errors as compared with original methods.