向量与矩阵命令 ApplyMatrix CharacteristicPolynomial Cross CurvatureVector Determinant Dimension Direction Dot Eigenvalues Eigenvectors Element Identity Invert JordanDiagonalization Length LUDecomposition MatrixRank MinimalPolynomial PerpendicularVector QRDecomposition ReducedRowEchelonForm SVD ToComplex ToPolar Transpose UnitPerpendicularVector UnitVector Vector