LU

Initialism of London Underground.

Proper noun

  1. Initialism of London Underground.
  2. Initialism of Liberty Union Party.
  3. Initialism of La Union.

Noun abbreviation, alt of

  1. Initialism of livestock unit.

Forms

LUs

Noun linear algebra, mathematics

  1. 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.

Origin

Short for lower-upper.