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CscLdl

conspire::math::sparse

Struct CscLdl 

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pub struct CscLdl { /* private fields */ }
Expand description

A sparse LDLᵀ factorization for symmetric matrices with a structurally full diagonal.

Computes PAPᵀ = LDLᵀ, with L stored as dense supernodal panels.

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impl CscLdl

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pub fn solve(&self, b: &Vector) -> Vector

Solve a system of linear equations using the factorization.

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pub fn nonzeros(&self) -> usize

The number of nonzero entries in the factors.

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pub fn refactor(&mut self, matrix: &CscMatrix) -> Result<(), SparseError>

Recomputes the factorization for new values in the same pattern, reusing the pivot order and fill pattern without any symbolic work or pivot search. The factorization is invalid if an error is returned.

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