基き本ほん行ぎょう列れつ

noun

elementary matrix

A matrix that differs from the identity matrix by a single elementary row operation. Used in linear algebra.

• 基き本ほん行ぎょう列れつを左ひだりから掛かけると、行ぎょう基き本ほん変へん形けいができる。

  Multiplying by an elementary matrix on the left performs an elementary row operation.

• 任にん意いの正せい則そく行ぎょう列れつは基き本ほん行ぎょう列れつの積せきで表あらわせる。

  Any invertible matrix can be expressed as a product of elementary matrices.