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Tridiagonal matrix

In linear algebra, a tridiagonal matrix is a band matrix that has nonzero elements on the main diagonal, the first diagonal below this, and the first diagonal above the main diagonal only. In linear algebra, a tridiagonal matrix is a band matrix that has nonzero elements on the main diagonal, the first diagonal below this, and the first diagonal above the main diagonal only.

[ "Matrix (mathematics)", "Eigenvalues and eigenvectors", "Tridiagonal matrix algorithm", "Cyclic reduction", "EISPACK", "SPIKE algorithm", "recursive doubling" ]
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