Function extendr_api::prelude::sparse::linalg::cholesky::simplicial::factorize_simplicial_numeric_ldlt_with_row_indices

pub fn factorize_simplicial_numeric_ldlt_with_row_indices<I, E>(
    L_values: <<E as Entity>::Group as ForType>::FaerOf<&mut [<E as Entity>::Unit]>,
    L_row_indices: &mut [I],
    L_col_ptrs: &[I],
    etree: EliminationTreeRef<'_, I>,
    A: SparseColMatRef<'_, I, E>,
    regularization: LdltRegularization<'_, E>,
    stack: PodStack<'_>,
) -> usize
where
    I: Index,
    E: ComplexField,
Expand description

Computes the row indices and numeric values of the Cholesky LDLT factor of the matrix A, and stores them in L_row_indices and L_values.

§Note

Only the upper triangular part of A is accessed.

§Panics

The elimination tree and column counts must be computed by calling prefactorize_symbolic_cholesky with the same matrix, then the column pointers are computed from a prefix sum of the column counts. Otherwise, the behavior is unspecified and panics may occur.