线性代数的几何意义_任广千，谢聪，胡翠芳编著__西安：西安电子科技大学出版社_P290_2015.09

The geometric meaning of linear algebra_Ren Guangqian, Xie Cong, Hu Cuifang, __Xi'an: Xi'an University of Electronic Science and Technology Press _P290_2015.09