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freebsd-ports/math/suitesparse-ccolamd/pkg-descr
Stefan Eßer fb16dfecae Remove WWW entries moved into port Makefiles
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Approved by:		portmgr (tcberner)
2022-09-07 23:58:51 +02:00

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This port installs the module CCOLAMD of SuiteSparse.
The CCOLAMD column approximate minimum degree ordering algorithm computes a
permutation vector P such that the LU factorization of A (:,P) tends to be
sparser than that of A. The Cholesky factorization of (A (:,P))'*(A (:,P)) will
also tend to be sparser than that of A'*A. CSYMAMD is a symmetric minimum
degree ordering method based on CCOLAMD, also available as a MATLAB-callable
function. It constructs a matrix M such that M'*M has the same pattern as A, and
then uses CCOLAMD to compute a column ordering of M.