怎样用Python的Numpy库求反正切?
代码如下:
import numpy as np
alpha = np.arctan(0.5)
alpha_degree = np.degrees(alpha)
alpha是以弧度为单位的,alpha_degree是以度数为单位的。
运行结果如下:
alpha = 0.4636476090008061
alpha_degree = 26.56505117707799
事实上,有 0.46 π × 180 = 26.56 \frac{0.46}{\pi } \times 180 = 26.56 π0.46×180=26.56