extendr_api::prelude::sparse::linalg::cholesky::simplicial

Function prefactorize_symbolic_cholesky

pub fn prefactorize_symbolic_cholesky<'out, I>(
    etree: &'out mut [<I as Index>::Signed],
    col_counts: &mut [I],
    A: SymbolicSparseColMatRef<'_, I>,
    stack: PodStack<'_>,
) -> EliminationTreeRef<'out, I>
where
    I: Index,
Expand description

Computes the elimination tree and column counts of the Cholesky factorization of the matrix A.

ยงNote

Only the upper triangular part of A is analyzed.