Last Updated
：2026/01/08
上三角行列
Hiragana
じょうさんかくぎょうれつ
Noun
Japanese Meaning
正方行列の一種で、対角成分より下のすべての成分が 0 である行列。上側（対角成分とその上側）にのみ非零成分を持つ。 / 連立一次方程式の解法などで用いられ、前進代入・後退代入を単純化する役割を持つ行列形式。
Easy Japanese Meaning
たてとよこにならんだ数のあつまりで、左上から右下の線より下がぜんぶれい
Chinese (Simplified) Meaning
主对角线以下元素全为零的矩阵 / 仅在主对角线及其以上可能有非零元素的矩阵
Chinese (Traditional) Meaning
線性代數中，主對角線以下元素皆為零的矩陣 / 僅主對角線及其以上可能為非零的矩陣
Korean Meaning
주대각선 아래의 모든 원소가 0인 정방행렬 / 대각선과 그 위쪽만 임의의 값이 가능한 ‘위쪽 삼각’ 형태의 행렬
Indonesian
matriks segitiga atas / matriks dengan semua elemen di bawah diagonal utama bernilai nol
Vietnamese Meaning
ma trận tam giác trên / ma trận có các phần tử dưới đường chéo chính bằng 0
Tagalog Meaning
itaas na tatsulok na matris / matris na ang mga elemento sa ibaba ng pangunahing diyagonal ay sero / matris na may hindi serong elemento lamang sa pangunahing diyagonal at sa itaas nito
Sense（1）
(linear algebra) upper triangular matrix
（ canonical ）
（ romanization ）
（ hiragana ）
Quizzes for review
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上三角行列
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In linear algebra, the upper triangular matrix plays a very important role.
In linear algebra, the upper triangular matrix plays a very important role.
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線形代数では、上三角行列は非常に重要な役割を果たします。
Japanese - English
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