IMSL C# Numerical Library

SparseCholesky.FactorSymbolically Method 

Computes the symbolic factorization of a sparse real symmetric positive definite matrix.

public void FactorSymbolically();

Remarks

This method symbolically factors the instance of the constructed matrix A, where A is of type SparseMatrix and is symmetric positive definite. The factorization is obtained in several steps:

  1. First, matrix A is permuted to reduce fill-in, leading to a sparse symmetric positive definite matrix PAP^T.
  2. Then, matrix PAP^T is symbolically factored.

Exceptions

Exception Type Condition
NotSPDException is thrown when the input matrix is not symmetric, positive definite.

See Also

SparseCholesky Class | Imsl.Math Namespace