Triangle Numbers Below N - MATLAB Cody - MATLAB Central

Problem 291. Triangle Numbers Below N

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This is an offshoot of Cody Problem 5: Triangle Numbers.

Triangle numbers are the sums of successive integers. So 6 is a triangle number because

 6 = 1 + 2 + 3

which can be displayed in a triangular shape like so

      *
     * *
    * * *

Return all triangle numbers below N.

Solve

Solution Stats

36.2% Correct | 63.8% Incorrect
Last Solution submitted on Jan 27, 2025

Problem Comments

Solution Comments

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Primes and Rough Numbers, Basic ideas
What is a rough number? What can they be used...
John D'Errico in Tips & Tricks
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