単たん位い行ぎょう列れつたんいぎょうれつじ字FuriganaMeanings1nounidentity matrix; unit matrixmathematics›A square matrix with ones on the main diagonal and zeros elsewhere; the multiplicative identity in matrix algebra.単たん位い行ぎょう列れつは、任にん意いの行ぎょう列れつ
