问题描述: matlab中用平方根,改进的平方根求解系数矩阵正定的方程的函数是哪个? 1个回答 分类:综合 2014-12-07 问题解答: 我来补答 L = ldl(A)[L,D] = ldl(A)[L,D,P] = ldl(A)[L,D,p] = ldl(A,'vector')[U,D,P] = ldl(A,'upper')[U,D,p] = ldl(A,'upper','vector')[L,D,P,S] = ldl(A)[L,D,P,S] = LDL(A,THRESH)[U,D,p,S] = LDL(A,THRESH,'upper','vector') 再问: 这是改进的平方根法,平方根法是什么啊,谢谢 展开全文阅读