chfact sparse Cholesky factorization Calling Sequence spcho=chfact(A) Arguments A square symmetric positive sparse matrix spcho list containing the Cholesky factors in coded form Description spcho=chfact(A) computes the sparse Cholesky factors of sparse matrix A, assumed symmetric positive definite. This function is based on the Ng-Peyton programs (ORNL). See the Fortran programs for a complete description of the variables in spcho. This function is to be used with chsolve. Examples See Also chsolve sparse lufact luget spchol