Householder变换Def5设,且,则n阶矩阵nvR称为Householder变换矩阵(或镜面反射矩阵)21v2THIvvH-矩阵的性质是一个对阵的正交矩阵:H;TTHHHHI22()()TTTHHIvvIvv44TTTIvvvvvv1TvvI反射性:对,是关于的垂直超平面的镜面反射。nxRHxxv几何意义:xv{}vvHxu证明:设xuv,{},uvR01;TTuvvv因为2()()THxIvvuv22TTuvvvuvvvuv设,且,则存...