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Topic: Square number

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Triangular number

Perfect number

Digital root

Rational number

Imaginary number

Natural number

Real number

Prime number

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	Pythagoras Square - Official Numerology
		Number 5 in Pythagoras Square is responsible for logic and intuition of the person which determines abilities of the person to plan and analyze situations, to understand exact sciences and technics.
		These are direct characteristics of Number 5, but there are also indirect characteristics which are connected with the central position in Pythagoras Square and as a result it belongs to four lines which can own the number and include it in their characteristics.
		The same story is about Number 5, having strong logic the person recollects separate parts and recalls the whole episode, that considerably increases memory, therefore it is possible to tell, that presence of “55″ in Pythagoras Square gives the additional “9″.
	www.officialnumerology.com /pythagoras-square (970 words)

	Square number - Wikipedia, the free encyclopedia
		In mathematics, a square number, sometimes also called a perfect square, is an integer that can be written as the square of some other integer.
		A square number is also the sum of two consecutive triangular numbers.
		The sum of two consecutive square numbers is a centered square number.
	en.wikipedia.org /wiki/Square_number (672 words)

	What's Special About This Number? (Site not responding. Last check: 2007-10-26)
		is the number of planar partitions of 10.
		is the number of planar partitions of 11.
		is the number of planar partitions of 12.
	www.stetson.edu /~efriedma/numbers.html (7399 words)

	Square number: Facts and details from Encyclopedia Topic (Site not responding. Last check: 2007-10-26)
		A square as a geometric shape is described and illustrated at square (geometry)....
		A centered square number is a centered figurate number that represents a square with a dot in the center and all other dots surrounding the center up to a certain...
		In mathematics, an imaginary number (or purely imaginary number) is a complex number whose square is negative or zero....
	www.absoluteastronomy.com /encyclopedia/s/sq/square_number.htm (1560 words)

	[No title]
		Here is your one-stop source for information about Coca Cola Town Square Accessories - when they were produced, retired and current values.
		All Coca Cola Town Square accessories come in their original packaging with mint condition boxes that were opened only to inspect.
		Or you might wish to use it to check all the pieces you are missing.
	www.2collectcola.com /page/ACC/townsq1 (233 words)

	Math Forum: Ask Dr. Math FAQ: Glossary of Numbers
		A happy number is a number for which the sum of the squares of the digits eventually equals 1.
		Sometimes a narcissistic number is defined as a number equal to the sum of its digits raised to a certain power, or, more specifically, as an n-digit number equal to the sum of its digits raised to the nth power.
		A triangular number is the number of dots needed to draw a triangle.
	mathforum.org /dr.math/faq/faq.number.glossary.html#figurate (1533 words)

	Square triangular number - Wikipedia, the free encyclopedia
		A square triangular number (or triangular square number) is a number which is both a triangular number and a perfect square.
		There is an infinity of triangular squares, given by the formula
		The problem of finding square triangular numbers reduces to Pell's equation in the following way.
	en.wikipedia.org /wiki/Triangular_square_number (156 words)

	THE ABACUS HANDBOOK (Site not responding. Last check: 2007-10-26)
		The square number refers to the number from which the square root is to be extracted.
		Look at the first group of paired numbers (or number) and determine the largest perfect square that is less than or equal to the group.
		In the event the square number is not a perfect square, when the decimal is reached further groups of 00 may be added and the process continued.
	www.gis.net /~daveber/Abacus/SquareRoot.html (2573 words)

	Square Triangular Numbers (Site not responding. Last check: 2007-10-26)
		The triangular numbers are 1, 3, 6, 10, 15, 21, 28, 36, 45,...
		A standard problem in elementary number theory is to determine ALL the numbers that are both square and triangular.
		So, we've shown that n[k] is a square for every odd index k=2j-1, and of course the quantity 4n is a square if and only if n is a square, so we have the related result that the number 4 n[2j-1] = (3+2sqrt(2))^(2j-1) + (3-2sqrt(2))^(2j-1) - 2 is a square for every positive integer j.
	www.mathpages.com /home/kmath159.htm (301 words)

	PlanetMath: square-free number
		A square-free number is a natural number that contains no powers greater than 1 in its prime factorization.
		This is version 8 of square-free number, born on 2001-10-30, modified 2005-12-19.
		Let s(n) denote the function that takes positive integers as its input and yields the number of (positive) squarefree numbers less than or equal to its input as its output.
	planetmath.org /encyclopedia/SquareFreeNumber.html (183 words)

	What's a number?
		2, being the length of the diagonal in a unit square, was the first number proved not to be rational.
		The rest of the complex numbers could also be defined by adding this new number i to the set of reals and postulating that usual arithmetic operations (addition, subtraction, multiplication) apply to the expanded set and all the laws known to hold for these operations hold for the new set as well.
		The rest of surreal numbers (included are the numbers we discussed so far and myriads of numbers some of which I have a difficulty imagining.) are formed starting with 0 and applying just two simple rules.
	www.cut-the-knot.org /do_you_know/numbers.shtml (3529 words)

	Irrational numbers. Evolution of the real numbers.
		We have seen (Lesson 9) that if squares are in the same ratio as two square numbers, then their sides will have the same ratio as the square roots.
		A rational number is to 1 in the same ratio as two natural numbers.
		The squares on the sides of triangle ABC are in the ratio 1 : 4 : 3.
	www.themathpage.com /areal/irrational-numbers.htm (857 words)

	Standardized Four Square Rules \| Squarefour.org
		Four Square is played on an 16' square court divided into four smaller squares that meet in the center.
		Each time a player is knocked out, that square becomes vacant and all the players move up to a higher numbered square to make the one square available for an incoming player.
		When a ball bounces in a square it is that player's responsibility to hit the ball into another square, and failure to do so would be a fault making her out.
	www.squarefour.org /rules (1556 words)

	Number Sequences - Square, Cube and Fibonacci
		The next number is made by squaring where it is in the pattern.
		The next number is made by cubing where it is in the pattern.
		The next number is found by adding the two numbers before it together.
	www.mathsisfun.com /numberpatterns.html (307 words)

	Ed Pegg's Math Games - The Möbius Function (and squarefree numbers)
		These complex numbers can always be factored into non-primes 1, -1, i, or -i times Gaussian primes of the form a+bi, where both a and b are positive integers.
		That's all the numbers both less than and relatively prime to 7, so 3 is a primitive root of 7.
		That's all the numbers both less than and relatively prime to 7, so 5 is a primitive root of 7.
	www.maa.org /editorial/mathgames/mathgames_11_03_03.html (1425 words)

	SquareRoots - Mentat Wiki
		The square root of a square number would be the original number that was multiplied by itself.
		If the ones digit of the given number is a 1, 4, 9 or 6, then there are two possibilites for the ones digit, and you're going to need to narrow down the possibility of whether the ones digit of the root is greater than or less than 5.
		If you're trying to square the number 65 in your head, you would simply multiply 6 (the tens digit of the number in question) times 7 (a number one greater than 6), and get 42.
	www.ludism.org /mentat/SquareRoots (1105 words)

	More about Palindromic Squares
		Square numbers are defined and calculated by this extraordinary intricate and excruciatingly complex formula.
		Here is a graphical representation of the first three square numbers to whet the beginner's appetite.
		Unlike Palindromic Triangulars where it is impossible to predict a next higher one, whether its basenumber is palindromic or not, with the Palindromic Squares (and Cubes) we have an opposite situation.
	www.worldofnumbers.com /square.htm (2239 words)

	Math Forum: BEATCALC
		Add this number to the second number to find the first part of the answer.
		Square the second digit: this is the last part of the answer.
		If the number is 58, multiply 5 × 5 = 25 (square the first digit).
	mathforum.org /k12/mathtips/2digit5.html (176 words)

	Session 7, Part C: Figurate Numbers
		"Square numbers" describe the number of dots needed to make squares like the ones below.
		The first square number is 1, the second is 4, and so on.
		Describe a rule relating the number of dots on the side of a square (the independent variable) and the total number of dots (the dependent variable).
	www.learner.org /channel/courses/learningmath/algebra/session7/part_c (178 words)

	Number clock for earth
		when we write the sequence of natural numbers not as a continuous line but in layers that go, for instance, from one square to the next and so form the silhouette of a pyramid.
		Poster of the square- to- square number pyramid with the upper prime- rich circle.
		The second prime- rich circle of the "number clock", also centered in the square- to- square number- pyramid array.
	www.recoveredscience.com /Primecalendar.htm (892 words)

	Table of contents
		The apex of the square- to- square "pyramid", and its strings of primes
		Patterns in the gaps between the primes of the triangular- number pyramid column at 7.
		The upper clock- face of the "number calendar" centered in the square- to- square number- pyramid array
	www.recoveredscience.com /primes1content.htm (319 words)

	More about Palindromic Triangulars
		Here is a formula that generates these numbers which are both triangular and square.
		Number of palindromic triangular numbers with n digits.
		There exist a sequence of precisely 1000 digits which includes all the numbers of 1 to 1000 as substrings.
	www.worldofnumbers.com /triangle.htm (1605 words)

	Grade 8: Square Root
		Try entering your own values to see the relationship between square and square root.
		distinguish between a square root and its decimal approximation as it appears on a calculator.
		estimate, compute (using a calculator), and verify approximate square roots of whole numbers and of decimals.
	argyll.epsb.ca /jreed/math8/strand1/1105.htm (154 words)

	Calculator for Complex Number Multiplication, Division, and Square Roots
		These calculators are for use with complex numbers - meaning numbers that have the form a + bi where 'i' is the square root of minus one.
		A complex number such as 3 + 5i would be entered as a=3 bi=5.
		For a complex number such as 7 + i, you would enter a=7 bi=1.
	www.1728.com /compnumb.htm (146 words)

	Table of Squares and Square Roots
		For instance, if you want to find the square root of 2000, look in the middle column until you find the number that is closest to 2000.
		The number in the middle column that is closest to 2000 is 2,025.
		Therefore, the approximate square root of 2,000 is 45.
	www.factmonster.com /ipa/A0875883.html (180 words)

	Four Square Rules (Site not responding. Last check: 2007-10-26)
		in their square, before hitting it underhanded to any other
		of the players move up one square and a new number one comes into play.
		The rest of the rules are the same as regular four square.
	pazz.tripod.com /4square.htm (130 words)

	Tumbled Marble Square Number Clock - OutdoorDecor.Com (Site not responding. Last check: 2007-10-26)
		The Tumbled Marble Square Number Clock has sand cut numerals in the marble and is hand painted with brown fill for easy of viewing.
		Each clock varies slightly in color, shape and size, according to the individual stone.
		All clock movements have a weatherproof cover for outdoor use and come with a 6 year warranty.
	www.outdoordecor.com /product_detail.asp?item=TCT10161 (148 words)

	- SHOP.COM (Site not responding. Last check: 2007-10-26)
		Uniquely styled this 14-karat gold square number one dad pendant is sure to please.
		On a textured background this exciting pendant has a cut out number 1 in the center of the square with the # sign on the side and dad across the 1 in the center inside...
		All other designated trademarks, copyrights and brands are the property of their respective owners.
	www.shop.com /op/aprod-p19067301 (168 words)

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