Explore Words Kanji Grammar Guides

Copyright © 2026 Kotomora. All Rights Reserved.

Get the Kotomora apps for iOS and Android.

Explore Words Kanji Grammar Guides About Support Privacy

Copyright © 2026 Kotomora. All Rights Reserved.

三角行列 (sankakugyouretsu) Japanese meaning | Kotomora

三さん角かく行ぎょう列れつ

さ

ん

か

く

ぎょ

う

れ

つ

Meanings

1

triangular matrix

A square matrix where all entries above or below the main diagonal are zero. Used in linear algebra.

三さん角かく行ぎょう列れつの行ぎょう列れつ式しきは対たい角かく成

せい

分ぶん

の

積せき

に

等ひと

しい

。

The determinant of a triangular matrix equals the product of its diagonal entries.

Kanji

三three
角angle, corner, square
行going, journey, carry out
列file, row, rank

Related words

対たい角かく行ぎょう列れつ
A diagonal matrix is a special case of a triangular matrix where both the upper and lower off-diagonal entries are zero.

Word family

上うえ三さん角かく行ぎょう列れつ
upper triangular matrix
下した三さん角かく行ぎょう列れつ
lower triangular matrix

Built from

三さん角かく+行ぎょう列れつ

Etymology

Compound of 三角 (さんかく, 'triangle') and 行列 (ぎょうれつ, 'matrix'), referring to the triangular shape of the non-zero entries.