See also https://github.com/timholy/PositiveFactorizations.jl
--Tim On Thursday, June 9, 2016 7:56:41 PM CDT Viral Shah wrote: > isposdef() or catch the exception from cholfact. > > -viral > > On Thursday, June 9, 2016 at 10:16:29 PM UTC-4, [email protected] wrote: > > In Matlab to check if a symmetric sparse matrix is positive definite, I > > can say [R,p]=chol(A) and then if p>0 etc. Is this functionality > > available > > in Julia? The cholfact standard routine throws an exception if its > > argument is not positive definite rather than returning any helpful > > information. > > > > I looked at the code for cholfact in cholmod.jl in Base; it appears that I > > can write a modified version of cholfact that exposes this functionality. > > But it would be better if the functionality were available in the library > > so that my code is not sensitive to changes in undocumented low-level > > routines. > > > > Thanks, > > Steve Vavasis
