import torch
import numpy as np
import math
data = [-0.9999,-0.5, -0.1, 0.8,0.9]
tensor = torch.FloatTensor(data)  # 转换成32位浮点 tensor# sin   三角函数 sin
print('\nsin',torch.log(math.pi- torch.asin(tensor)),'\nnumpy: ', math.pi- np.arcsin(data),      # [-0.84147098 -0.90929743  0.84147098  0.90929743]'\ntorch: ', torch.sin( math.pi- torch.asin(tensor))  # [-0.8415 -0.9093  0.8415  0.9093]
)