Counting Triangles in Triangles

Fuente: arXiv
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Autores principales: Propp, Jim, Propp-Gubin, Adam
Formato: Preprint
Publicado: 2024
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author Propp, Jim
Propp-Gubin, Adam
author_facet Propp, Jim
Propp-Gubin, Adam
contents We give a formula for counting the triangles in a picture consisting of the three sides of a triangle and some cevians. This lets us prove statements that are claimed without proof in the Online Encyclopedia of Integer Sequences and some popular YouTube videos, and also prove some new results. We also give formulas that apply when the cevians cut each side into equal-length pieces.
format Preprint
id arxiv_https___arxiv_org_abs_2409_17117
institution arXiv
publishDate 2024
record_format arxiv
spellingShingle Counting Triangles in Triangles
Propp, Jim
Propp-Gubin, Adam
Combinatorics
We give a formula for counting the triangles in a picture consisting of the three sides of a triangle and some cevians. This lets us prove statements that are claimed without proof in the Online Encyclopedia of Integer Sequences and some popular YouTube videos, and also prove some new results. We also give formulas that apply when the cevians cut each side into equal-length pieces.
title Counting Triangles in Triangles
topic Combinatorics
url https://arxiv.org/abs/2409.17117