Function PyCross

python/utils.py:114–115

(a,b)

              +mat[2,0]*(mat[0,1]*mat[1,2]-mat[0,2]*mat[1,1])

def PyCross(a,b):
    return CoefficientFunction( (a[1]*b[2]-a[2]*b[1],a[2]*b[0]-a[0]*b[2],a[0]*b[1]-a[1]*b[0]) )

def PyCof(m):
    if m.dims[0] == 1: