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Name reservation for xingo-sparse, the sparse linear algebra crate of
the Xingó LP/MIP solver, under active development at
https://github.com/StrategicProjects/xingo (crates/sparse).
The crate provides generic (T: Real) CSC/CSR containers, a
threshold-pivoting LU with Forrest–Tomlin basis updates and hypersparse
triangular solves, native AMD/COLAMD orderings, and a reusable symbolic
factorization. This placeholder release holds the crate name; version
0.1.0 will be the first functional release.