3. 简单编程题：写一个程序，它在0°和90°之间每隔15°输出一行数据，打印一个表。每行中包括5个项目：角度数，以及它所对应的正弦、余弦、正切、余切函数值(注意角度与弧度间的转换)。-3 simple programming problem: Write a program that between 0 and 90 every 15 line of output data, print a table. Each row consists of five items: the number

选取与最后一条确定边夹角最小的点，即余弦值最大者 -Finally, a selection and determine the minimum point edge angle, ie the maximum of the cosine

可以绘制余弦曲线，在制定的幅值等参数时，可以绘制出效果不错的曲线-Cosine curve can be drawn, in the formulation of the amplitude and other parameters, you can draw a graph showing good results