Sparse null space and orthogonal

Versione 1.2.0.0 (2,38 KB) da Bruno Luong
NULL space and ORTHOGONAL basis for sparse matrix
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Aggiornato 10 mag 2010

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Two simple functions that compute the NULL space and ORTHOGONAL basis of a sparse matrix using QR decomposition with row permutation.

For FULL matrices, Matlab stock functions NULL and ORTH use SVD decomposition, which is not available for SPARSE matrix.

Since Matlab 2009B (?), QR decomposition is available for sparse matrices, which can be used to estimate the orthogonal basis without converting matrix in FULL.

Cita come

Bruno Luong (2024). Sparse null space and orthogonal (https://www.mathworks.com/matlabcentral/fileexchange/27550-sparse-null-space-and-orthogonal), MATLAB Central File Exchange. Recuperato .

Compatibilità della release di MATLAB
Creato con R2010a
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SparseNullOrth/

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1.2.0.0

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