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三角行列 (さんかくぎょうれつ) 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.