我正在尝试使用以下矩阵并执行如代码所示的点积。 我检查了所有矩阵的大小都为(3,1),但在最后两个点积时出现错误。
coordinate1 = [-7.173, -2.314, 2.811]
coordinate2 = [-5.204, -3.598, 3.323]
coordinate3 = [-3.922, -3.881, 4.044]
coordinate4 = [-2.734, -3.794, 3.085]
import numpy as np
from numpy import matrix
coordinate1i=matrix(coordinate1)
coordinate2i=matrix(coordinate2)
coordinate3i=matrix(coordinate3)
coordinate4i=matrix(coordinate4)
b0 = coordinate1i - coordinate2i
b1 = coordinate3i - coordinate2i
b2 = coordinate4i - coordinate3i
n1 = np.cross(b0, b1)
n2 = np.cross(b2, b1)
n12cross = np.cross(n1,n2)
x1= np.cross(n1,b1)/np.linalg.norm(b1)
print np.shape(x1)
print np.shape(n2)
np.asarray(x1)
np.asarray(n2)
y = np.dot(x1,n2)
x = np.dot(n1,n2)
return np.degrees(np.arctan2(y, x))