File:First_six_triangular_numbers.svg · Wikimedia Commons · See Wikimedia Commons
Also known as trigonal number
物体を整然と正三角形の形に敷き詰めて並べる事ができる自然数
AI overview
I don't have enough information in the provided context to write an accurate overview of triangular numbers. The context only mentions "figurate number" as a category, but doesn't define what triangular numbers are or explain their significance.
AI-generated from the Wikipedia summary — may contain errors.
Wikidata facts
- Subclass of
- polygonal number
- Image
- Números triangulares.png
Show 2 more facts
- Commons category
- Triangular numbers
- maintained by WikiProject
- WikiProject Mathematics
Sources (1)
via Wikidata · CC0
Article · 日本語
三角数（さんかくすう、英: triangular number）とは多角数の一種で、正三角形の形に点を並べたときにそこに並ぶ点の総数のことである。n番目の三角数は 1 から n までの自然数の和に等しい。
Abstract from DBpedia / Wikipedia · CC BY-SA