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Encyclopedia > Magic square

In recreational mathematics, a magic square of order n is an arrangement of n² numbers, usually distinct integers, in a square, such that the n numbers in all rows, all columns, and both diagonals sum to the same constant. A normal magic square contains the integers from 1 to n². The term "magic square" is also sometimes used to refer to any of various types of word square. Recreational mathematics includes many mathematical games, and can be extended to cover such areas as logic and other puzzles of deductive reasoning. ... The integers are commonly denoted by the above symbol. ... For other uses, see Square. ... A word square is a kind of acrostic. ...


Normal magic squares exist for all orders n ≥ 1 except n = 2, although the case n = 1 is trivial—it consists of a single cell containing the number 1. The smallest nontrivial case, shown below, is of order 3.

Image:Magicsquareexample.svg

The constant sum in every row, column and diagonal is called the magic constant or magic sum, M. The magic constant of a normal magic square depends only on n and has the value Image File history File links Magicsquareexample. ... The magic constant of a magic square, an n-by-n matrix, is defined such that the sum of any row, column or main diagonal yields the same result, denoted M2(n). ...

M(n) = frac{n^3+n}{2}.

For normal magic squares of order n = 3, 4, 5, …, the magic constants are:

15, 34, 65, 111, 175, 260, … (sequence A006003 in OEIS).

Contents

The On-Line Encyclopedia of Integer Sequences (OEIS) is an extensive searchable database of integer sequences, freely available on the Web. ...

History of magic squares

your an ass The Lo Shu square (3×3 magic square)

Chinese literature dating from as early as 650 BC tells the legend of Lo Shu or "scroll of the river Lo".[1] In ancient China, there was a huge flood. The people tried to offer some sacrifice to the river god of one of the flooding rivers, the Lo river, to calm his anger. Then, there emerged from the water a turtle with a curious figure/pattern on its shell; there were circular dots of numbers that were arranged in a three by three nine-grid pattern such that the sum of the numbers in each row, column and diagonal was the same: 15. This number is also equal to the number of days in each of the 24 cycles of the Chinese solar year. This pattern, in a certain way, was used by the people in controlling the river. Chinese literature spans back thousands of years, from the earliest recorded dynastic court archives to the matured fictional novel arising in the medieval period to entertain the masses of literate Chinese. ... Centuries: 8th century BC - 7th century BC - 6th century BC Decades: 700s BC 690s BC 680s BC 670s BC 660s BC - 650s BC - 640s BC 630s BC 620s BC 610s BC 600s BC Events and Trends Occupation begins at Maya site of Piedras Negras, Guatemala 657 BC - Cypselus becomes the... The 洛書 luòshū. Modern representation of the Lo Shu square as a magic square. ... China is the worlds oldest continuous major civilization, with written records dating back about 3,500 years and with 5,000 years being commonly used by Chinese as the age of their civilization. ... For other uses, see Turtle (disambiguation). ... The Chinese calendar is a lunisolar calendar formed by combining a purely lunar calendar with a solar calendar. ...

4 9 2
3 5 7
8 1 6

The Lo Shu Square, as the magic square on the turtle shell is called, is the unique normal magic square of order three in which 1 is at the bottom and 2 is in the upper right corner. Every normal magic square of order three is obtained from the Lo Shu by rotation or reflection. Modern representation of the Lo Shu square as a magic square. ...


The Square of Lo Shu is also referred to as the Magic Square of Saturn or Cronos. Its numerical value is obtained from the workings of the I Ching when the Trigrams are placed in an order given in the first river map, the Ho Tu or Yellow River. The Ho Tu produces 4 squares of Hexagrams 8 x 8 in its outer values of 1 to 6, 2 to 7, 3 to 8, and 4 to 9, and these outer squares can then be symmetrically added together to give an inner central square of 5 to 10. The central values of the Ho Tu are those of the Lo Shu (so they work together), since in the total value of 15 x 2 (light and dark) is found the number of years in the cycle of equinoctial precession (12,960 x 2 = 25,920). The Ho Tu produces a total of 40 light and 40 dark numbers called the days and nights (the alternations of light and dark), and a total of 8 x 8 x 8 Hexagrams whose opposite symmetrical addition equals 8640, therefore each value of a square is called a season as it equals 2160. 8640 is the number of hours in a 360-day year, and 2160 years equals an aeon (12 aeons = 25,920 yrs). This article is about the planet. ... Rhea tricking Cronus with a wrapped stone. ... Alternative meaning: I Ching (monk) The I Ching (Traditional Chinese: 易經, pinyin y jīng; Cantonese IPA: jɪk6gɪŋ1; Cantonese Jyutping: jik6ging1; alternative romanizations include I Jing, Yi Ching, Yi King) is the oldest of the Chinese classic texts. ... The bagua (Chinese: 八卦; pinyin: ; Wade-Giles: pa kua; literally eight trigrams) is a fundamental philosophical concept in ancient China. ... For other Yellow Rivers, see Yellow River (disambiguation). ... It has been suggested that Pascals Mystic Hexagram be merged into this article or section. ... The precession of the equinoxes refers to the precession of Earths axis of rotation with respect to inertial space. ... For the geologic time, see eon (geology). ...


To validate the values contained in the 2 river maps (Ho Tu and Lo Shu) the I Ching provides numbers of Heaven and Earth that are the 'Original Trigrams' (father and mother) from 1 to 10. Heaven or a Trigram with all unbroken lines (light lines - yang) have odd numbers 1,3,5,7,9, and Earth a Trigram with all broken lines have even numbers 2,4,6,8,10. If each of the Trigram's lines is given a value by multiplying the numbers of Heaven and Earth, then the value of each line in Heaven 1 would be 1 + 2 + 3 = 6, and its partner in the Ho Tu of Earth 6 would be 6 + 12 + 18 = 36, these 2 'Original Trigrams' thereby produce 6 more Trigrams (or children in all their combinations) -- and when the sequences of Trigrams are placed at right angles to each other they produce an 8 x 8 square of Hexagrams (or cubes) that each have 6 lines of values. From this simple point the complex structure of the maths evolves as a hexadecimal progression, and it is the hexagon that is the link to the turtle or tortoise shell. In Chinese texts of the I Ching the moon is symbolic of water (darkness) whose transformations or changes create the light or fire - the dark value 6 creates the light when its number is increased by 1. This same principle can be found in ancient calendars such as the Egyptian, as the 360 day year of 8640 hrs was divided by 72 to produce the 5 extra days or 120 hours on which the gods were born. It takes 72 years for the heavens to move 1 degree through its Precession. Alternative meaning: I Ching (monk) The I Ching (Traditional Chinese: 易經, pinyin y jīng; Cantonese IPA: jɪk6gɪŋ1; Cantonese Jyutping: jik6ging1; alternative romanizations include I Jing, Yi Ching, Yi King) is the oldest of the Chinese classic texts. ... Japanese name Kanji: Hiragana: Yin and yang (Simplified Chinese: ; Traditional Chinese: ; Pinyin: ) are generalizations of the antithesis or mutual correlation between certain objects or phenomena in the natural world, combining to create a unity of opposites. ...


Cultural significance of magic squares

Magic squares have fascinated humanity throughout the ages, and have been around for over 4,000 years. They are found in a number of cultures, including Egypt and India, engraved on stone or metal and worn as talismans, the belief being that magic squares had astrological and divinatory qualities, their usage ensuring longevity and prevention of diseases. An amulet from the Black Pullet grimoire An amulet (from Latin amuletum, meaning A means of protection) or a talisman (from Arabic tilasm, ultimately from Greek telesma or from the Greek word talein wich means to initiate into the mysteries. ... Hand-coloured version of the anonymous Flammarion woodcut (1888). ...


The Kubera-Kolam is a floor painting used in India which is in the form of a magic square of order three. It is essentially the same as the Lo Shu Square, but with 19 added to each number, giving a magic constant of 72.

23 28 21
22 24 26
27 20 25

Arabia

Magic squares were known to Arab mathematicians, possibly as early as the 7th century, when the Arabs got into contact with Indian or South Asian culture, and learned Indian mathematics and astronomy, including other aspects of combinatorial mathematics. It has also been suggested that the idea came via China. The first magic squares of order 5 and 6 appear in an encyclopedia from Baghdad circa 983 AD, the Rasa'il Ihkwan al-Safa (the Encyclopedia of the Brethern of Purity); simpler magic squares were known to several earlier Arab mathematicians.[1] Languages Arabic and other minority languages Religions Islam, Christianity, Druzism and Judaism An Arab (Arabic: , arabi) is a member of a complexly defined ethnic group who identifies as such on the basis of one or more of either genealogical, political, or linguistic grounds. ... Combinatorics is a branch of mathematics that studies finite collections of objects that satisfy specified criteria, and is in particular concerned with counting the objects in those collections (enumerative combinatorics) and with deciding whether certain optimal objects exist (extremal combinatorics). ... Baghdad (Arabic: ) is the capital of Iraq and of Baghdad Governorate. ... The Encyclopedia of the Brethren of Purity (also variously known as the Epistles of the Brethren of Sincerity, the Epistles of the Brethren of Purity or Epistles of the Brethren of Purity and Loyal Friends; Arabic:رسائل أخوان الصفا و خلان الوفا Rasail ikhwan as-safa wa khillan al-wafa ) was a large encyclopedia [1...


The Arab mathematician Al-Buni, who worked on magic squares around 1200 A.D., attributed mystical properties to them, although no details of these supposed properties are known. There are also references to the use of magic squares in astrological calculations, a practice that seems to have originated with the Arabs.[1] Ahmad ibn ‘Ali ibn Yusuf al-Buni (Arabic:أحمد البوني) (d. ...


Europe

In 1300, building on the work of the Arab Al-Buni, Greek Byzantine scholar Manuel Moschopoulos wrote a mathematical treatise on the subject of magic squares, leaving out the mysticism of his predecessors.[2] Moschopoulos is thought to be the first Westerner to have written on the subject. In the 1450s the Italian Luca Pacioli studied magic squares and collected a large number of examples.[1] Ahmad ibn ‘Ali ibn Yusuf al-Buni (Arabic:أحمد البوني) (d. ... Manuel Moschopulus (Greek: Mανουήλ Μοσχόπουλος, Manuel Moskhopoulos), Byzantine commentator and grammarian, lived during the end of the 13th and the beginning of the 14th century. ... Painting of Luca Pacioli, attributed to Jacopo de Barbari, 1495 (attribution controversial[1]). Table is filled with geometrical tools: slate, chalk, compass, a dodecahedron model. ...


In about 1510 Heinrich Cornelius Agrippa wrote De Occulta Philosophia, drawing on the Hermetic and magical works of Marsilio Ficino and Pico della Mirandola, and in it he expounded on the magical virtues of seven magical squares of orders 3 to 9, each associated with one of the astrological planets. This book was very influential throughout Europe until the counter-reformation, and Agrippa's magic squares, sometimes called Kameas, continue to be used within modern ceremonial magic in much the same way as he first prescribed.[1][3] Cornelius Agrippa, as portrayed in Libri tres de occulta philosophia. ... Hermeticism should not be confused with the concept of a hermit. ... Not to be confused with Magic (illusion). ... Domenico Ghirlandaio. ... Giovanni Pico della Mirandola (February 24, 1463 – November 17, 1494) was an Italian Renaissance humanist philosopher and scholar. ... Hand-coloured version of the anonymous Flammarion woodcut (1888). ... The Counter-Reformation or the Catholic Reformation was a strong reaffirmation of the doctrine and structure of the Catholic Church, climaxing at the Council of Trent, partly in reaction to the growth of Protestantism. ...

Saturn=15
4 9 2
3 5 7
8 1 6
Jupiter=34
4 14 15 1
9 7 6 12
5 11 10 8
16 2 3 13
Mars=65
11 24 7 20 3
4 12 25 8 16
17 5 13 21 9
10 18 1 14 22
23 6 19 2 15
Sol=111
6 32 3 34 35 1
7 11 27 28 8 30
19 14 16 15 23 24
18 20 22 21 17 13
25 29 10 9 26 12
36 5 33 4 2 31
Venus=175
22 47 16 41 10 35 4
5 23 48 17 42 11 29
30 6 24 49 18 36 12
13 31 7 25 43 19 37
38 14 32 1 26 44 20
21 39 8 33 2 27 45
46 15 40 9 34 3 28
Mercury=260
8 58 59 5 4 62 63 1
49 15 14 52 53 11 10 56
41 23 22 44 45 19 18 48
32 34 35 29 28 38 39 25
40 26 27 37 36 30 31 33
17 47 46 20 21 43 42 24
9 55 54 12 13 51 50 16
64 2 3 61 60 6 7 57
Luna=369
37 78 29 70 21 62 13 54 5
6 38 79 30 71 22 63 14 46
47 7 39 80 31 72 23 55 15
16 48 8 40 81 32 64 24 56
57 17 49 9 41 73 33 65 25
26 58 18 50 1 42 74 34 66
67 27 59 10 51 2 43 75 35
36 68 19 60 11 52 3 44 76
77 28 69 20 61 12 53 4 45
The derivation of the sigil of Hagiel, the planetary intelligence of Venus, drawn on the magic square of Venus. Each Hebrew letter provides a numerical value, giving the vertices of the sigil.
The derivation of the sigil of Hagiel, the planetary intelligence of Venus, drawn on the magic square of Venus. Each Hebrew letter provides a numerical value, giving the vertices of the sigil.

The most common use for these Kameas is to provide a pattern upon which to construct the sigils of spirits, angels or demons; the letters of the entity's name are converted into numbers, and lines are traced through the pattern that these successive numbers make on the kamea. In a magical context, the term magic square is also applied to a variety of word squares or number squares found in magical grimoires, including some that do not follow any obvious pattern, and even those with differing numbers of rows and columns. They are generally intended for use as talismans. For instance the following squares are: The Sator square, one of the most famous magic squares found in a number of grimoires including the Key of Solomon; a square "to overcome envy", from The Book of Power;[4] and two squares from The Book of the Sacred Magic of Abramelin the Mage, the first to cause the illusion of a superb palace to appear, and the second to be worn on the head of a child during an angelic invocation: The planet Saturn in astrology is considered to possess a number of qualities which influence events on Earth . ... The planet Jupiter in astrology is considered to possess a number of qualities which influence events on Earth . ... The planet Mars in astrology is considered to possess a number of qualities which influence events on Earth . ... The Sun in astrology is considered to possess a number of qualities which influence events on Earth . ... The planet Venus in astrology is considered to possess a number of qualities which influence events on Earth . ... The planet Mercury is held in Western astrology to possess certain qualities that influence events on Earth. ... This article needs to be cleaned up to conform to a higher standard of quality. ... Image File history File links No higher resolution available. ... Image File history File links No higher resolution available. ... An excerpt from Sefer Raziel HaMalakh, featuring various magical sigils (or סגולות, seguloth, in Hebrew). ... The planet Venus in astrology is considered to possess a number of qualities which influence events on Earth . ... The word Hebrew most likely means to cross over, referring to the Semitic people crossing over the Euphrates River. ... An excerpt from Sefer Raziel HaMalakh, featuring various magical sigils (or סגולות, seguloth, in Hebrew). ... The English word spirit comes from the Latin spiritus (breath). // The English word spirit comes from the Latin spiritus, meaning breath (compare spiritus asper), but also soul, courage, vigor, ultimately from a PIE root *(s)peis- (to blow). In the Vulgate, the Latin word translates Greek (πνευμα), pneuma (Hebrew (רוח) ruah), as... This article is about the supernatural being. ... “Fiend” redirects here. ... A word square is a kind of acrostic. ... This design for an amulet comes from the Black Pullet grimoire. ... The words of the sator square may be read in any direction SATOR AREPO TENET OPERA ROTAS (sometimes called the sator square) is a Latin palindrome, the words of which, when written in a square, may be read top-to-bottom, bottom-to-top, left-to-right, and right-to... The Key of Solomon is a grimoire or book on magic attributed to King Solomon (as several others were). ... Cover of a 1975 paperback reprint of Mathers 1897 English translation of The Book of the Sacred Magic of Abramelin the Mage ; the art is an etching by Rembrandt titled Dr. Faustus and has nothing to do with the story of Abramelin. ... An invocation (from the Latin verb invocare to call on, invoke) is: A supplication. ...

S A T O R
A R E P O
T E N E T
O P E R A
R O T A S
6 66 848 938
8 11 544 839
1 11 383 839
2 73 774 447
H E S E B
E Q A L
S
E G
B
A D A M
D A R A
A R A D
M A D A

Albrecht Dürer's magic square

Detail of Melancholia I
Detail of Melancholia I

The order-4 magic square in Albrecht Dürer's engraving Melancholia I is believed to be the first seen in European art. It is very similar to Yang Hui's square, which was created in China about 250 years before Dürer's time. The sum 34 can be found in the rows, columns, diagonals, each of the quadrants, the center four squares, the corner squares, the four outer numbers clockwise from the corners (3+8+14+9) and likewise the four counter-clockwise (the locations of four queens in the two solutions of the 8 queens puzzle [1]), the two sets of four symmetrical numbers (2+8+9+15 and 3+5+12+14) and the sum of the middle two entries of the two outer columns and rows (e.g. 5+9+8+12), as well as several kite-shaped quartets, e.g. 3+5+11+15; the two numbers in the middle of the bottom row give the date of the engraving: 1514. Dürer's Melancholia I plays a key role in The Art Thief, a novel by Noah Charney (Atria, 2007). Image File history File links Albrecht_Dürer_-_Melencolia_I_(detail). ... Image File history File links Albrecht_Dürer_-_Melencolia_I_(detail). ... Albrecht Dürer (pronounced /al. ... Melencolia I, often known as Melancholia I (using the modern spelling) is an engraving by the German Renaissance master Albrecht Dürer. ... Yang Hui (楊輝, c. ... Queen. ... One possible solution The eight queens puzzle is the problem of putting eight chess queens on an 8×8 chessboard such that none of them is able to capture any other using the standard chess queens moves. ... 1514 was a common year starting on Thursday (see link for calendar) of the Gregorian calendar. ...

16 3 2 13
5 10 11 8
9 6 7 12
4 15 14 1

The Sagrada Família magic square

A magic square on the Sagrada Família church façade.

The Passion façade of the Sagrada Família church in Barcelona, designed by sculptor Josep Subirachs, features a 4×4 magic square: Magic square in facade of Sagrada Familia This image comes originally from http://www. ... Magic square in facade of Sagrada Familia This image comes originally from http://www. ... For the Alan Parsons Project song, see La Sagrada Familia (song). ... Location Coordinates : Time Zone : CET (GMT +1) - summer: CEST (GMT +2) General information Native name Barcelona (Catalan) Spanish name Barcelona Nickname Ciutat Comtal (City of Counts) Postal code 08001–08080 Area code 34 (Spain) + 93 (Barcelona) Website http://www. ... Josep Subirachs (born 1927) is the leading Catalan sculptor of the late 20th century. ...


The magic constant of the square is 33, the age of Jesus at the time of the Passion. Structurally, it is very similar to the Melancholia magic square, but it has had the numbers in four of the cells reduced by 1. This article is about Jesus of Nazareth. ... The Passion is the theological term used for the suffering, both physical and mental, of Jesus in the hours prior to and including his trial and execution by crucifixion. ...

1 14 14 4
11 7 6 9
8 10 10 5
13 2 3 15

While having the same pattern of summation, this is not a normal magic square as above, as two numbers (10 and 14) are duplicated and two (12 and 16) are absent, failing the 1→n² rule.


Types of magic squares and their construction

There are many ways to construct magic squares, but the standard (and most simple) way is to follow certain configurations/formulas which generate regular patterns. Magic squares exist for all values of n, with only one exception - it is impossible to construct a magic square of order 2. Magic squares can be classified into three types: odd, doubly even (n divisible by four) and singly even (n even, but not divisible by four). Odd and doubly even magic squares are easy to generate; the construction of singly even magic squares is more difficult but several methods exist, including the LUX method for magic squares (due to John Horton Conway) and the Strachey method for magic squares. Conways LUX method for magic squares is an algorithm for creating magic squares of order 4n+2, where n is an integer. ... John Horton Conway (born December 26, 1937, Liverpool, England) is a prolific mathematician active in the theory of finite groups, knot theory, number theory, combinatorial game theory and coding theory. ... The Strachey method for magic squares is an algorithm for generating magic squares of order 4n+2. ...


Group theory was also used for constructing new magic squares of a given order from one of them, please see [2]. Group theory is that branch of mathematics concerned with the study of groups. ...

Unsolved problems in mathematics: How many n×n magic squares for n>5?

The number of different n×n magic squares for n from 1 to 5, not counting rotations and reflections: Image File history File links No higher resolution available. ... This article lists some unsolved problems in mathematics. ...

1, 0, 1, 880, 275305224 (sequence A006052 in OEIS)

The number for n = 6 has been estimated to 0.17745×1020. The On-Line Encyclopedia of Integer Sequences (OEIS) is an extensive searchable database of integer sequences, freely available on the Web. ...


A method for constructing a magic square of odd order

Starting from the central column of the first row with the number 1, the fundamental movement for filling the squares is diagonally up and right, one step at a time. If a filled square is encountered, one moves vertically down one square instead, then continuing as before. When a move would leave the square, it is wrapped around to the last row or first column, respectively.


Similar patterns can also be obtained by starting from other squares.

Order 3
8 1 6
3 5 7
4 9 2
Order 5
17 24 1 8 15
23 5 7 14 16
4 6 13 20 22
10 12 19 21 3
11 18 25 2 9
Order 9
47 58 69 80 1 12 23 34 45
57 68 79 9 11 22 33 44 46
67 78 8 10 21 32 43 54 56
77 7 18 20 31 42 53 55 66
6 17 19 30 41 52 63 65 76
16 27 29 40 51 62 64 75 5
26 28 39 50 61 72 74 4 15
36 38 49 60 71 73 3 14 25
37 48 59 70 81 2 13 24 35

The following formulae help construct magic squares of odd order

Order 5
Squares (n) Last No. Middle No. * Sum (M)*
n n2 frac{n^2}{2}+ 0.5 left(frac{n^2}{2}+ 0.5 right) n

* Square roots are easier to calculate than cubic roots


Example:

Order 5
Squares (n) Last No. Middle No. Sum (M)
5 25 13 65

The "Middle Number" is always in the diagonal bottom left to top right.
The "Last Number" is always opposite the number 1 in an outside column or row.


A method of constructing a magic square of doubly even order

Doubly even means that n is an even multiple of an even integer; or 4p, where p is an integer. eg 4, 8, 12


Generic pattern


All the numbers are written in order from right to left across each row in turn, starting from the top left hand corner. Numbers are then either retained in the same place or interchanged with their diametrically opposite numbers in a certain regular pattern. In the magic square of order four, the numbers in the four central squares and one square at each corner are retained in the same place and the others are interchanged with their diametrically opposite numbers.


A construction of a magic square of order 4


Go left to right through the square filling counting and filling in on the diagonals only. Then continue by going left to right from the top left of the table and fill in counting down from 16 or n². As shown below.

M = Order 4
1 4
6 7
10 11
13 16
M = Order 4
1 15 14 4
12 6 7 9
8 10 11 5
13 3 2 16

The medjig-method of constructing magic squares of even order n>4

This playful method is based on a 2006 published mathematical game called medjig (author: Willem Barink, editor: Philos-Spiele). The pieces of the medjig puzzle are squares divided in four quadrants on which the numbers 0, 1, 2 and 3 are dotted in all sequences. There are 18 squares, every sequence occurs 3 times. The aim of the puzzle is to take 9 squares out of the collection and arrange them in a 3 x 3 "medjig-square" in such a way that the series, columns and diagonals formed by the quadrants, show the sum of 9.


The medjig way of construction of a magic square of order 6 goes as follows. Arrange a 3 x 3 medjig square (for convenience this time you may choose unlimited from the whole collection). Then take the well-known classic 3 x 3 magic square and divide all fields of it in four quadrants. Next fill these quadrants with the original number and its three modulo-9 numbers up to 36, following the pattern of the medjig-solution. Doing so, the original field with the number 8 yields the four subfields with the numbers 8 (= 8 + 0x9), 17 (= 8 + 1x9), 26 (= 8 + 2x9) and 35 (= 8 + 3x9), the field with the number 3 yields the numbers 3, 12, 21 and 30, etc… See illustration below.

Order 3
8 1 6
3 5 7
4 9 2
Medjig 3 x 3
2 3 0 2 0 2
1 0 3 1 3 1
3 1 1 2 2 0
0 2 0 3 3 1
3 2 2 0 0 2
0 1 3 1 1 3
Order 6
26 35 1 19 6 24
17 8 28 10 33 15
30 12 14 23 25 7
3 21 5 32 34 16
31 22 27 9 2 20
4 13 36 18 11 29

The same way you can construct a magic square of order 8. You first have to construct a 4 x 4 medjig solution (sum of all series, columns and diagonals 12). And then enlarge e.g. the well-known Dürer 4 x 4 magic square modulo-16 to 64. For the construction of a magic square of order 10 you have to arrange a 5 x 5 medjig solution, for which two sets of medjig pieces are needed. For the order 12 you can simply duplicate horizontally and vertically a 3 x 3 medjig solution and then enlarge modulo-36 to 144 the order 6 magic square made above. Order 16 goes the same way.


The construction of panmagic squares

Any number p in the order-n square can be uniquely written in the form p = an + r, with r chosen from {1,...,n}. Note that due to this restriction, a and r are not the usual quotient and remainder of dividing p by n. Consequently the problem of constructing can be split in two problems easier to solve. So, construct two matching square grids of order n satisfying panmagic properties, one for the a-numbers (0,….,n-1), and one for the r-numbers (1,….,n). This requires a lot of puzzling, but can be done. When successful, combine them into one - panmagic - square. Van den Essen and many others supposed this was also the way the great Benjamin Franklin (1706-1790) constructed his famous franklin squares. Three panmagic squares are shown below. The first two squares have been constructed April 2007 by Barink, the third one is some years older, and comes from Donald Morris, who used, as he supposes, the franklin way of construction. Benjamin Franklin (January 17 [O.S. January 6] 1706 – April 17, 1790) was one of the most well known Founding Fathers of the United States. ...

Order 8, sum 260
62 4 13 51 46 20 29 35
5 59 54 12 21 43 38 28
52 14 3 61 36 30 19 45
11 53 60 6 27 37 44 22
64 2 15 49 48 18 31 33
7 57 56 10 23 41 40 26
50 16 1 63 34 32 17 47
9 55 58 8 25 39 42 24
Order 12, sum 870
138 8 17 127 114 32 41 103 90 56 65 79
19 125 140 6 43 101 116 30 67 77 92 54
128 18 7 137 104 42 31 113 80 66 55 89
5 139 126 20 29 115 102 44 53 91 78 68
136 10 15 129 112 34 39 105 88 58 63 81
21 123 142 4 45 99 118 28 69 75 94 52
130 16 9 135 106 40 33 111 82 64 57 87
3 141 124 22 27 117 100 46 51 93 76 70
134 12 13 131 110 36 37 107 86 60 61 83
23 121 144 2 47 97 120 26 71 73 96 50
132 14 11 133 108 38 35 109 84 62 59 85
1 143 122 24 25 119 98 48 49 95 74 72
Order 12, sum 870
1 120 121 48 85 72 73 60 97 24 25 144
142 27 22 99 58 75 70 87 46 123 118 3
11 110 131 38 95 62 83 50 107 14 35 134
136 33 16 105 52 81 64 93 40 129 112 9
8 113 128 41 92 65 80 53 104 17 32 137
138 31 18 103 54 79 66 91 42 127 114 7
5 116 125 44 89 68 77 56 101 20 29 140
139 30 19 102 55 78 67 90 43 126 115 6
12 109 132 37 96 61 84 49 108 13 36 133
135 34 15 106 51 82 63 94 39 130 111 10
2 119 122 47 86 71 74 59 98 23 26 143
141 28 21 100 57 76 69 88 45 124 117 4

The order 8 square satisfies all panmagic properties, including the franklin ones. It consists of 4 perfectly panmagic 4x4 units. Note that both order 12 squares show the property that any row or column can be divided in three parts having a sum of 290 (= 1/3 of the total sum of a row or column). This property compensates the absence of the more standard panmagic franklin property that any 1/2 row or column shows the sum of 1/2 of the total. For the rest the order 12 squares differ a lot.The Barink 12x12 square is composed of 9 perfectly panmagic 4x4 units, moreover any 4 consecutive numbers starting on any odd place in a row or column show a sum of 290. The Morris 12x12 square lacks these properties, but on the contrary shows constant franklindiagonals. For a better understanding of the constructing decompose the squares as described above, and see how it was done. And note the difference between the Barink constructions on the one hand, and the Morris/Franklin construction on the other hand.


Generalizations

Extra constraints

Certain extra restrictions can be imposed on magic squares. If not only the main diagonals but also the broken diagonals sum to the magic constant, the result is a panmagic square. If raising each number to certain powers yields another magic square, the result is a bimagic, a trimagic, or, in general, a multimagic square. A panmagic square is a magic square with the additional requirement that all broken diagonals sum to the magic constant. ... In mathematics, a bimagic square is a magic square that also remains magic if all of the numbers it contains are squared. ... In mathematics, a trimagic square is a magic square that also remains magic if all of the numbers it contains are squared or cubed. ... In mathematics, a P-multimagic square is a magic square that remains magic even if all its numbers are replaced by their kth power for 1 ≤ k ≤ P. Thus, a magic square is bimagic if it is 2-multimagic, and trimagic if it is 3-multimagic. ...


Different constraints

Sometimes the rules for magic squares are relaxed, so that only the rows and columns but not necessarily the diagonals sum to the magic constant. In heterosquares and antimagic squares, the 2n + 2 sums must all be different. A heterosquare is a square array of consecutive integers whose rowsums, columnsums, and two diagonal sums, are all different. ... An antimagic square of order n is an arrangement of the numbers 1 to n² in a square, such that the n rows, the n columns and the two diagonals form a sequence of 2n + 2 consecutive integers. ...


Other operations

Instead of adding the numbers in each row, column and diagonal, one can apply some other operation. For example, a multiplicative magic square has a constant product of numbers.

M = 216
2 9 12
36 6 1
3 4 18
M = 6720
1 6 20 56
40 28 2 3
14 5 24 4
12 8 7 10

Other magic shapes

Other shapes than squares can be considered, resulting, for example, in magic stars and magic hexagons. Going up in dimension results in magic cubes, magic tesseracts and other magic hypercubes. In a standard magic star, or magic polygram, numbers are placed at each vertex and intersection to produce lines of four that each sum to the same magic total. ... A magic hexagon of order n is a arrangement of numbers in a centered hexagonal pattern with n cells on each edge, in such a way that the numbers in each row, in all three directions, sum to the same magic constant. ... In mathematics, a magic cube is the 3-dimensional equivalent of a magic square, that is, a number of integers arranged in a n x n x n pattern such that the sum of the numbers on each row, each column, each pillar and the four main space diagonals is... In mathematics, a magic tesseract is the 4-dimensional generalization of a magic square and magic cube, that is, a number of integers arranged in an n × n × n × n pattern such that the sum of the numbers on each pillar (along any axis) as well as the main space... In mathematics, a magic hypercube is the k-dimensional generalization of magic squares, magic cubes and magic tesseracts, that is, a number of integers arranged in an n x n x n x . ...


Combined extensions

One can combine two or more of the above extensions, resulting in such objects as multiplicative multimagic hypercubes. Little seems to be known about this subject.


Related problems

Over the years, many mathematicians, including Euler and Cayley have worked on magic squares, and discovered fascinating relations. Leonhard Euler aged 49 (oil painting by Emanuel Handmann, 1756) Leonhard Euler (April 15, 1707 - September 18, 1783) (pronounced oiler) was a Swiss mathematician and physicist. ... Arthur Cayley (August 16, 1821 - January 26, 1895) was a British mathematician. ...


Magic square of primes

Rudolf Ondrejka (1928-2001) discovered the following 3x3 magic square of primes, in this case nine Chen primes: In mathematics, a prime number (or a prime) is a natural number which has exactly two distinct natural number divisors: 1 and itself. ... A prime number p is called a Chen prime if p + 2 is either a prime or a product of two primes. ...

17 89 71
113 59 5
47 29 101

The Green-Tao theorem implies that there are arbitrarily large magic squares consisting of primes. In mathematics, the Green-Tao theorem, proved by Ben Green and Terence Tao in 2004[1], states that the sequence of prime numbers contains arbitrarily long arithmetic progressions. ...


n-Queens problem

In 1992, Demirörs, Rafraf, and Tanik published a method for converting some magic squares into N-queens solutions, and vice versa. One possible solution The eight queens puzzle is the problem of putting eight chess queens on an 8×8 chessboard such that none of them is able to capture any other using the standard chess queens moves. ...


Date magic square

A date magic square is a 4×4 magic square in which the numbers in a given date (for example, April 15, 1707) are used to construct the first row (4, 15, 17, 07). The magic constant (M) of a 4×4 'normal' magic square is 34. If the four numbers in a date don't add up to 34, we cannot construct a 'normal' magic square for that date. In the above example, M=43: is the 105th day of the year (106th in leap years) in the Gregorian calendar. ... Events January 1 - John V is crowned King of Portugal March 26 - The Acts of Union becomes law, making the separate Kingdoms of England and Scotland into one country, the Kingdom of Great Britain. ... The magic constant of a magic square, an n-by-n matrix, is defined such that the sum of any row, column or main diagonal yields the same result, denoted M2(n). ...

4 15 17 07
5 19 13 6
20 9 2 12
14 0 11 18

The only difference between a magic square and a date magic square is that, in a date magic square repetition of numbers is not allowed in any row except the first one, whereas in a 'normal' magic square, repetition is not allowed in any row.


Number/Word Magic Square

Can a combination magic square can be constructed as follows?


(1) Make a normal magic square of order 3 using any numbers.


(2) Count the number of letters in each number and replace the number with this count.


(3) The new square must also be magic.


The answer is yes, as can be seen below:

Sum = 45
5 22 18
28 15 2
12 8 25
Words
five twenty two eighteen
twenty eight fifteen two
twelve eight twenty five
Sum = 21
4 9 8
11 7 3
6 5 10

See also

An antimagic square of order n is an arrangement of the numbers 1 to n² in a square, such that the n rows, the n columns and the two diagonals form a sequence of 2n + 2 consecutive integers. ... In mathematics, a bimagic square is a magic square that also remains magic if all of the numbers it contains are squared. ... One possible solution The eight queens puzzle is the problem of putting eight chess queens on an 8×8 chessboard such that none of them is able to capture any other using the standard chess queens moves. ... A heterosquare is a square array of consecutive integers whose rowsums, columnsums, and two diagonal sums, are all different. ... A Latin square is an n × n table filled with n different symbols in such a way that each symbol occurs exactly once in each row and exactly once in each column. ... In mathematics, a P-multimagic square is a magic square that remains magic even if all its numbers are replaced by their kth power for 1 ≤ k ≤ P. Thus, a magic square is bimagic if it is 2-multimagic, and trimagic if it is 3-multimagic. ... A magic series is a set of distinct positive numbers which add up to the magic sum of a magic square, thus potentially making up a line in a magic square. ... In a standard magic star, or magic polygram, numbers are placed at each vertex and intersection to produce lines of four that each sum to the same magic total. ... A most-perfect magic square is a type of magic square with two additional properties: Each 2-by-2 subsquare sums to 2S where . ... A panmagic square is a magic square with the additional requirement that all broken diagonals sum to the magic constant. ... In mathematics, a reciprocal is a number divided into one, like 1/3 or 1/7. ... The words of the sator square may be read in any direction SATOR AREPO TENET OPERA ROTAS (sometimes called the sator square) is a Latin palindrome, the words of which, when written in a square, may be read top-to-bottom, bottom-to-top, left-to-right, and right-to... In mathematics, a trimagic square is a magic square that also remains magic if all of the numbers it contains are squared or cubed. ... This article lists some unsolved problems in mathematics. ... This article is about the logic puzzle. ... A word square is a kind of acrostic. ... Yang Hui (楊輝, c. ... In mathematics, a magic cube is the 3-dimensional equivalent of a magic square, that is, a number of integers arranged in a n x n x n pattern such that the sum of the numbers on each row, each column, each pillar and the four main space diagonals is... Magic cubes may be assigned to one of six Magic Cube Classes, based on the cube characteristics. ... In mathematics, a magic tesseract is the 4-dimensional generalization of a magic square and magic cube, that is, a number of integers arranged in an n × n × n × n pattern such that the sum of the numbers on each pillar (along any axis) as well as the main space... In mathematics, a magic hypercube is the k-dimensional generalization of magic squares, magic cubes and magic tesseracts, that is, a number of integers arranged in an n x n x n x . ... A magic hypercube is an extension of a magic square as well as of the magic cube and magic tesseract. ... // A Nasik magic hypercube is a magic hypercube with the added restriction that all possible lines through each cell sum correctly to where S = the magic constant, m = the order and n = the dimension, of the hypercube. ... John Robert Hendricks, September 4, 1929 - July 7, 2007, was a mathematician specializing in magic squares and hypercubes. ...

Notes

  1. ^ a b c d e Swaney, Mark. History of Magic Squares.
  2. ^ Manuel Moschopoulos - Mathematics and the Liberal Arts
  3. ^ Drury, Nevill (1992). Dictionary of Mysticism and the Esoteric Traditions. Bridport, Dorset: Prism Press. ISBN 1-85327-075-X. 
  4. ^ "The Book of Power: Cabbalistic Secrets of Master Aptolcater, Mage of Adrianople", transl. 1724. In Shah, Idries (1957). The Secret Lore of Magic. London: Frederick Muller Ltd. 

Idries Shah (16 June 1924–23 November 1996) (Arabic: ), also known as Idris Shah, né Sayyid Idris al-Hashimi (Arabic: سيد إدريس الهاشمي), was an author in the Naqshbandi sufist tradition on works ranging from psychology and spirituality to travelogues and culture studies. ...

References

Wikisource has an original article from the 1911 Encyclopædia Britannica about:
  • W. S. Andrews, Magic Squares and Cubes. (New York: Dover, 1960), originally printed in 1917
  • John Lee Fults, Magic Squares. (La Salle, Illinois: Open Court, 1974).
  • Cliff Pickover, The Zen of Magic Squares, Circles, and Stars (Princeton, New Jersey: Princeton University Press)
  • Leonhard Euler, On magic squares ( pdf )
  • Mark Farrar, Magic Squares ( [3] )
  • Asker Ali Abiyev, The Natural Code of Numbered Magic Squares (1996), ( http://www1.gantep.edu.tr/~abiyev/abiyeving.htm )
  • William H. Benson and Oswald Jacoby, "New Recreations with Magic Squares". (New York: Dover, 1976).

Dr. Eric W. Weisstein Encyclopedist Dr. Eric W. Weisstein (born March 18, 1969, in Bloomington, Indiana) is a noted encyclopedist in several technical areas of science and mathematics. ... MathWorld is an online mathematics reference work, sponsored by Wolfram Research Inc. ... Image File history File links Wikisource-logo. ... The original Wikisource logo. ... Encyclopædia Britannica, the eleventh edition The Encyclopædia Britannica Eleventh Edition (1910–1911) is perhaps the most famous edition of the Encyclopædia Britannica. ... Clifford A. Pickover is a writer in the fields of science, mathematics, and science fiction. ... Oswald Jacoby (December 8, 1902 - June 27, 1984) was an American bridge expert and author, and is considered one of the greatest players of all time. ...

Further reading

  • Charney, Noah The Art Thief Atria (2007), a novel with a key plot point involving a magic square.
  • McCranie, Judson (November 1988). "Magic Squares of All Orders". Mathematics Teacher: 674-78. 
  • King, J. R. (1963). "Magic Square Numbers". 


  Results from FactBites:
 
magic square - Encyclopedia.com (1006 words)
magic square a square divided into parts with letters or numbers inscribed therein that, whether combined vertically, horizontally, or diagonally, form the same sum or the same word.
Magic squares have been found in such widely divergent cultures as ancient China, Egypt, and India, as well as W Europe.
The association between Magic Johnson's HIV serostatus disclosure and condom use in at-risk respondents.
Magic square Summary (2733 words)
In recreational mathematics, a magic square of order n is an arrangement of n² numbers, usually distinct integers, in a square, such that the n numbers in all rows, all columns, and both diagonals sum to the same constant.
The earliest magic square of order four was found in an inscription in Khajuraho, India, dating from the eleventh or twelfth century; it is also a panmagic square where, in addition to the rows, columns and main diagonals, the broken diagonals also have the same sum.
In the magic square of order four, the numbers in the four central squares and one square at each corner are retained in the same place and the others are interchanged with their diametrically opposite numbers.
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