恒こう等とう作さ用よう素そ

noun

identity operator

Mathematical term for an operator that maps each element to itself. Used in functional analysis and linear algebra.

• 恒こう等とう作さ用よう素そは、任にん意いのベクトルをそれ自じ身しんに写うつす。

  The identity operator maps any vector to itself.