cumentation: slepc-3.13.3 v3.13.3 src/sys/classes/ds/impls/hep/bdc/index.html "><small>Report Typos and Errors</small></a></div>

<h2>Direct Solver (or Dense System) - DS</h2>

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The DS package provides auxiliary routines that are internally used by the different SLEPc solvers. It is used to represent low-dimensional eigenproblems that must be solved within iterative solvers with direct methods. It can be seen as a structured wrapper to LAPACK functionality.
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These routines are usually not needed 