乙腈>麦克斯韦方程组>价差预备费chinese男同志movies青年One Day When We Were Young (2021) Genre: Documentary程度补语Director: Xu BeiNational Southwest Associated University (also known as Lianda) is a compre-hensive university
1 试题A:一、 用Doolittle 分解法,求解四元方程组⎪⎪⎪⎪⎪⎭⎫⎝⎛=⎪⎪⎪⎪⎪⎭⎫ ⎝⎛⎪⎪⎪⎪⎪⎭⎫⎝⎛8279522161012488103468214214321x x x x (15分) 解:A=LU=⎪⎪⎪⎪⎪⎭⎫⎝⎛---⎪⎪⎪⎪⎪⎭⎫ ⎝⎛60003200224014211214011300120001………………