submatrix

[ suhb-mey-triks, -ma-triks ]

noun

, Mathematics.

, plural sub·ma·tri·ces [suhb-, mey, -tri-seez, -, ma, -tri-seez], sub·ma·trix·es.

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

Word History and Origins

Origin of submatrix¹

sub- + matrix

Example Sentences

When k bits are encoded as n bits, ‘systematic form’ means that the first k physical bits are exactly the k logical bits, so the first k × k submatrix of the generator matrix is the identity matrix, which need not be transmitted.

From Nature