numpy, pytorch, tensorflow 乘法符号及作用
### numpy# 矩阵乘法R = np.dot(A, B) R = np.matmul(A, B)# 对应元素相乘R = A * BR = np.multiply(A, B)### pytorch# 矩阵乘法R = torch.mm(A, B)R = torch.matmul(A, B)# 对应相乘R = A * BR = torch.mul(A, B)### tensorflow# 对应相乘R = A * B# 矩阵相乘R = tf.matmu
