lu meaning: definition, etymology

lu

nounalso spelled LU

/luː/

Etymology A romanization of Chinese 路 (lù, “route”)

Historical, Usually Synonym of route or circuit, an administrative division of imperial China.

LU

noun

Etymology Short for lower-upper.

Linear algebra, Mathematics, Sciences A matrix decomposition which writes a matrix as the product of a lower and upper triangular matrix, used in numerical analysis to solve systems of linear equations or find the inverse of a matrix.

Entry derived from the Wiktionary, under licence CC BY-SA 4.0 — authors: page histories for lu and LU.