I 've seen people post calculus and trigonometry equations and get them solved fairly quickly !
我看到过大家把算出来的答案和三角函数等式贴出来过，而且还很快！
The climax of this work was the development of trigonometry .
三角术的发展是这项工作的高峰。
Learn some statistics high school mathematics curriculums spend too much time on traditional topics like euclidean geometry and trigonometry .
学一点统计学高中数学课的大部分时间都是花在了欧几里得几何和三角法一些传统的课题上。
In an earlier era , when many people were involved in surveying land , it made sense to require that almost every student entering a top college know something of trigonometry .
