numpy.cross(a, b) # cross product of a and b (or vectors in a and b)
numpy.cross(a, b, axisa=-1) #cross product of vectors in a with b, s.t. vectors in a are laid out along axis axisa
numpy.cross(a, b, axisa=-1, axisb=-1, axisc=-1) # cross products of vectors in a and b, output vectors laid ou...