LAPACK  3.4.2
LAPACK: Linear Algebra PACKage
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dsytd2.f File Reference

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Functions/Subroutines

subroutine dsytd2 (UPLO, N, A, LDA, D, E, TAU, INFO)
 DSYTD2 reduces a symmetric matrix to real symmetric tridiagonal form by an orthogonal similarity transformation (unblocked algorithm).