submatrix

[ suhb-mey-triks, -ma-triks ]
/ sʌbˈmeɪ trɪks, -ˈmæ trɪks /

noun, plural sub·ma·tri·ces [suhb-mey-tri-seez, -ma-tri-seez] /sʌbˈmeɪ trɪˌsiz, -ˈmæ trɪˌsiz/, sub·ma·trix·es. Mathematics.

a set of certain rows and columns of a given matrix.

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Origin of submatrix

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2020