正せい規き直ちょっ交こう系けい

noun

orthonormal system

A set of vectors that are mutually orthogonal and each of unit length. Used in linear algebra and functional analysis.

• 正せい規き直ちょっ交こう系けいは、ベクトル空くう間かんの基き底ていとしてよく用もちいられる。

  An orthonormal system is often used as a basis for a vector space.