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上三角行列 (uesankakugyouretsu) Japanese meaning | Kotomora

上うえ三さん角かく行ぎょう列れつ

う

え

さ

ん

か

く

ぎょ

う

れ

つ

Meanings

1

upper triangular matrix

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

上うえ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 an upper triangular matrix equals the product of its diagonal entries.

Kanji

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

Related words

下した三さん角かく行ぎょう列れつ
A lower triangular matrix has zeros above the main diagonal, while an upper triangular matrix has zeros below it.
三さん角かく行ぎょう列れつ
A general term for triangular matrices; 上三角行列 specifically refers to the upper variant.

Built from

Etymology

Compound of 上 (うえ, 'upper'), 三角 (さんかく, 'triangle'), and 行列 (ぎょうれつ, 'matrix'). The term directly describes the matrix shape.

三さん角かく行ぎょう列れつ