Perform a symbolic factorization analysis on the sparse matrix S.
The input variables are
S is a complex or real sparse matrix.
Is the type of the factorization and can be one of
Factorize S. This is the default.
Factorize S' * S
.
Factorize S * S'
.
Factorize S'
The default is to return the Cholesky factorization for r, and if
mode is 'L'
, the conjugate transpose of the
Cholesky factorization is returned. The conjugate transpose version is
faster and uses less memory, but returns the same values for count,
h, parent and post outputs.
The output variables are
The row counts of the Cholesky factorization as determined by typ.
The height of the elimination tree.
The elimination tree itself.
A sparse boolean matrix whose structure is that of the Cholesky factorization as determined by typ.
Package: octave