principal submatrix

principal submatrix
мат. главная подматрица

Большой англо-русский и русско-английский словарь. 2001.

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  • Tridiagonal matrix — In linear algebra, a tridiagonal matrix is a matrix that is almost a diagonal matrix. To be exact: a tridiagonal matrix has nonzero elements only in the main diagonal, the first diagonal below this, and the first diagonal above the main… …   Wikipedia

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