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Tridiagonalna matricya ce matricya yaka maye nenulovi elementi lishe na golovnij diagonali na diagonali pid neyu ta na diagonali nad neyu Napriklad nastupna matricya ye tridiagonalnoyu 1 4 0 0 3 4 1 0 0 2 3 4 0 0 1 3 displaystyle begin pmatrix 1 amp 4 amp 0 amp 0 3 amp 4 amp 1 amp 0 0 amp 2 amp 3 amp 4 0 amp 0 amp 1 amp 3 end pmatrix Viznachnik tridiagonalnoyi matrici ye kontinuantoyu yiyi elementiv 1 Ortogonalne peretvorennya simetrichnoyi abo Ermitovoyi matrici do diagonalnoyi formi mozhe buti zdijsnene za dopomogoyu algoritmu Lancosha Div takozh RedaguvatiMatricya GessenbergaDzherela RedaguvatiGantmaher F R Teoriya matric 5 e M Fizmatlit 2010 559 s ISBN 5 9221 0524 8 ros Tridiagonal and Bidiagonal Matrices Arhivovano 29 sichnya 2013 u Wayback Machine in the LAPACK manual Module for Tri Diagonal Linear Systems Moawwad El Mikkawy Abdelrahman Karawia 2006 Inversion of general tridiagonal matrices Applied Mathematics Letters 19 8 712 720 doi 10 1016 j aml 2005 11 012 Arhiv originalu za 20 lipnya 2011 Procitovano 27 travnya 2013 High performance algorithms Arhivovano 11 listopada 2013 u Wayback Machine for reduction to condensed Hessenberg tridiagonal bidiagonal formPrimitki Redaguvati Thomas Muir 1960 A treatise on the theory of determinants Dover Publications s 516 525 Otrimano z https uk wikipedia org w index php title Tridiagonalna matricya amp oldid 36887450