Yes. The way out Ls are constructed will ensure that it has 1s in the diagonal.
On Tuesday, June 7, 2016 at 6:20:26 PM UTC-4, Gabriel Goh wrote: > > A simple question as posed in the title, this is guaranteed by LAPACK > > The factorization has the form > A = P * L * U > where P is a permutation matrix, L is lower triangular with unit > diagonal > elements (lower trapezoidal if m > n), and U is upper triangular > (upper > trapezoidal if m < n). > > > but is not part of the official Julia documentation. Just wanted to make sure > that was the case because it's a useful feature in understanding the null > space of the matrix > >
