T(x)=Ax,(x∈R")则T为线性变换 设e1,e2,…,en为单位坐标向量,那么 1112∴1n 0 ael 2122∴∴2n = -a1, an1 (n2 a1a12…a1nY0 U2122 2n 0 Aen= ang an1 (n2 m 上页T(x) Ax,(x R ), n =  则T为线性变换. 设e1 ,e2 ,  ,en为单位坐标向量,那么, 0 0 1 1 1 2 2 1 2 2 2 1 1 1 2 1 1 =                             =        a a a a a a a a a Ae n n nn n n , 1 0 0 1 2 2 1 2 2 2 1 1 1 2 1  n n n nn n n n a a a a a a a a a Ae =                             =        