1·Let us plot both the sine and the cosine curves.
假设我们同时绘制正弦和余弦曲线。
2·I am a statistician, a "cosine academic," should you find the expression amusing.
我是一名统计学家，“余弦学者”，如果你觉得这个表达有趣的话。
3·And, we can use that to measure angles between vectors by solving for cosine in this.
我们还可以通过解出式中余弦的方法，得到两向量间的角度。
4·Each module was an arithmetical command such as add, subtract, multiply, cosine, sine.
每一个组件都是一种算数指令，诸如加、减、乘、余弦、正弦。
5·Add, multiply, cosine, etc., can be combined to generate any mathematical equation we can think of.
加、乘、余弦等的相互组合能产生任何我们可以想到的数学方程。