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dnping · 2008-01-25, 16:24

L*U=P*A;
A=inv(P)*L*U;
A'=(inv(P)*L*U)'
=U'*L'*(inv(P))';
A'*x=b => U'*L'*(inv(P))'*x=b;
……

2008-01-25, 16:24	#2
dnping 高级会员注册日期: 2007-07-26 年龄: 40 帖子: 268 声望力: 24	LU=PA; A=inv(P)LU; A'=(inv(P)LU)' =U'L'(inv(P))'; A'x=b => U'L'(inv(P))'x=b; ……