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Please note that the recommended version of Scilab is 6.1.0. This page might be outdated.
See the recommended documentation of this function

Scilab help >> Linear Algebra > chfact


sparse Cholesky factorization

Calling Sequence




square symmetric positive sparse matrix


list containing the Cholesky factors in coded form


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.

See Also

  • chsolve — sparse Cholesky solver
  • sparse — sparse matrix definition
  • lufact — sparse lu factorization
  • luget — extraction of sparse LU factors
  • spchol — sparse cholesky factorization
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Last updated:
Wed Oct 05 12:09:40 CEST 2011