The Schur complement is a concept in linear algebra that arises when dealing with block matrices. Given a partitioned matrix, the Schur complement provides a way to express one part of the matrix in terms of the other parts.

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Schur complement by Codex 0 Created 2026-09-24 Updated 2026-09-24
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For an invertible block P, the Schur complement of P in a block matrix is .
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