What is a triangular number?

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Triangle numbers A number is a triangle number if we can arrange that number of objects into a triangle, like so: - Read more

... 10 is a triangular number because 1 + 2 + 3 + 4 = 10. A triangular number is calculated by the equation: This short article about mathematics can be made longer. - Read more

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What is a triangular number? resources

What's a number? - Cut-the-Knot

Triangular numbers owe their name to a similar construction, now of triangles. Actually we already used triangular numbers in the proof of Lemma 3 above.

Math Magic - Triangular Numbers

HOME. Miscellaneous. Elementary GCD LCM Definitions. Percents. Ratios. Square Roots. Reverses. Junior High Cube Roots. Mult By 9 (#1) Mult By 9 (#2)

Triangular number - Wikipedia, the free encyclopedia

A triangular number or triangle number counts the objects that can form an equilateral triangle, as in the diagram on the right. The nth triangle number is the number ...

Triangular Numbers - Mathematische Basteleien

What are Triangular Numbers? These are the first 100 triangular numbers: The sequence of the triangular numbers comes from the natural numbers (and zero), if you ...

What Is a Triangular Number? - HubPages

Triangular Numbers do not need to cause confusion! Come in and see some of them.

Triangular Number -- from Wolfram MathWorld

Triangular Number. The triangular number is a figurate number that can be represented in the form of a triangular grid of points where the first row contains a single ...

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What does triangular number mean? - definitions

Definition of triangular number in the Definitions.net ... starting at the 0th triangular number, is: The triangle numbers are given by the following explicit ...

What is a triangular number? - Answerbag.com | Ask ...

A triangular number is a natural number such that the shape of an equilateral triangle can be formed by that number of points. Every triangular number can ...

Triangular Number | Online references | cyclopaedia.net

References for "Triangular Number" online, at universities and in literature... cyclopaedia.net

Triangular and Square Numbers - UCLA Department of Mathematics

(c) The third triangular number, which we write as T 3; is 6. i. Why are 4 and 5 not triangular numbers? (d) What is T 4; the fourth triangular number?

Square Triangular Number -- from Wolfram MathWorld

A number which is simultaneously square and triangular. Let T_n denote the nth triangular number and S_m the mth square number, then a number which is both triangular ...

Triangular Numbers | Azimuth

If you think a bit, you’ll see: • In the first triangle, the product of all numbers in the nth row is • In the second, the product of all numbers in ...

Definition of Triangular Number - Math is Fun - Maths ...

A number that can make a triangular dot pattern. Example: 1, 3, 6, 10 and 15 are triangular numbers.

Definition Of Triangular Number - Math Help for Parents ...

Triangular Number: A number that can be represented by a triangular array. Math A Tube Glossary, Videos, Pictures, and Text.

Triangular Numbers (Part III) - Is all about math

Going back once more to the original problem of finding a formula to compute the n triangular number. ... Triangular numbers suggest by their name the idea of ...

Triangular Numbers - Math Forum - Ask Dr. Math

Triangular Numbers Date: 4/11/96 at 10:37:41 From: Anonymous Subject: Triangular Numbers What is a Triangular Number? I have tried to look it up in my brother's math ...

Triangular Number - World News

Triangular Numbers, Algebraic Equation for Triangular Numbers : Algebra Lessons, Triangular Numbers, Triangular Numbers (I), Triangular Numbers - Corbettmaths, Tarte ...

Triangle Numbers - PerlMonks

I read about triangle numbers in book by Clifford Pickover, I forget which one. Triangle numbers are numbers of the form 0+1+2+3...n, or .5*n*(n+1).

Ancient Greek Mathematics: Geometric Numbers: Triangular ...

Triangular number and sums Triangular numbers are so called because they can be arranged in a triangular array of dots (elements). Consider ...

Triangular Numbers (Part I) - Is all about math

Going back in history more than two thousand years Pythagoras and the Pythagoreans were interested in establishing relations between geometric figures and numbers.If ...

Triangular number - Definition and More from the Free ...

Learn More About TRIANGULAR NUMBER. Britannica.com: Encyclopedia article about "triangular number" Browse. Next Word in the Dictionary: triangular numbers

Triangular Numbers - Teaching Ideas

Triangular numbers are those numbers that can be formed by counting the number of objects used in making a triangle. 1) Ask the children to make ...

Fascinating Triangular Numbers By Shyam Sunder Gupta

Properties of triangular numbers including reversible, happy, harshad, highly composite, deficient, abundant ones.

Triangular numbers - NZMaths

Triangular Numbers Number and Algebra, Level 3 The Problem. Triangular numbers are made by forming triangular patterns with counters. Riwa has made the first four ...

Triangular Numbers | nzmaths

Problem. Triangular numbers are made by forming triangular patterns with counters. Riwa has made the first four triangular numbers with blue counters.