Bidiagonal matrix

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A bidiagonal matrix is a symmetric tridiagonal matrix, a special type of matrix representation from the LAPACK Fortran package.

A symmetric tridiagonal or bidiagonal matrix is stored in two one-dimensional arrays, one of length n containing the diagonal elements, and one of length n-1 containing the off-diagonal elements. (EISPACK routines store the off-diagonal elements in elements 2:n of a vector of length n.)

[edit] External links

http://www.netlib.org/lapack/lug/node125.html Source of this information
http://www.nag.co.uk/numeric/fl/manual/html/indexes/kwic/bidiagonal.html For further information on bidiagonal matrices.

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