File:First_six_triangular_numbers.svg · Wikimedia Commons · See Wikimedia Commons
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 · 中文
一定数目的点或圆在等距離的排列下可以形成一个等邊三角形，這樣的數被稱為三角形數。比如10個點可以組成一个等邊三角形，因此10是一個三角形數： 頭30個三角形數是1, 3, 6, 10, 15, 21, 28, 36, 45, 55, 66, 78, 91, 105, 120, 136, 153, 171, 190, 210, 231, 253, 276, 300, 325, 351, 378, 406, 435, 465, ...（OEIS數列）。 三角数的二倍的平方根取整，是这个三角数的序数。
Abstract from DBpedia / Wikipedia · CC BY-SA