libcxsparse4 - 1:7.8.3+dfsg-2 main

Suitesparse is a collection of libraries for computations involving
sparse matrices.
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The CXSparse library provides several matrix algorithms. The focus is on direct
methods; iterative methods and solvers for eigenvalue problems are beyond the
scope of this package.
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The performance of the sparse factorization methods in CXSparse will not be
competitive with UMFPACK or CHOLMOD, but the codes are much more concise and
easy to understand. Other methods are competitive.