From: "Cai Jianming" To: Subject: Upper Triangle/Lower Triangle matrix by CHOL Date: Tue, 16 Jan 2001 07:15:35 +0800 Hi, The attached file will allow CHOL to return a upper triangle/lower = triangle matrix, so that ldiv can be done more efficiently. Any other = operations will get passed to octave_matrix. I.e. typical code could be: c = chol(a) x = c\ (c' \ b) To compile: mkoctfile *.cc -o chol.oct and copy chol.oct into your libexec/octave/site/oct directory. Regards, Jianming