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7. Square arrays

7. Square arrays  

Robin Wilson

in Combinatorics: A Very Short Introduction

Print Publication Year: 
Apr 2016
Published Online: 
Apr 2016
eISBN: 
9780191790324
DOI: 
10.1093/actrade/9780198723493.003.0007
Item type: 
chapter
ISBN: 
9780198723493
‘Square arrays’ is concerned with magic squares and latin squares. An n × n magic square, or a magic square of order n, is a square array of numbers (usually the numbers from 1 to n ... More
5. Groups and games

5. Groups and games  

Ian Stewart

in Symmetry: A Very Short Introduction

Print Publication Year: 
May 2013
Published Online: 
Sep 2013
eISBN: 
9780191778292
DOI: 
10.1093/actrade/9780199651986.003.0006
Item type: 
chapter
ISBN: 
9780199651986
‘Groups and games’ explores group theory applied to games and puzzles. Simple games can have large symmetry groups, raising questions that are hard to answer even with today's computational ... More
8. Designs and geometry

8. Designs and geometry  

Robin Wilson

in Combinatorics: A Very Short Introduction

Print Publication Year: 
Apr 2016
Published Online: 
Apr 2016
eISBN: 
9780191790324
DOI: 
10.1093/actrade/9780198723493.003.0008
Item type: 
chapter
ISBN: 
9780198723493
Block designs are used when designing experiments in which varieties of a commodity are compared. ‘Designs and geometry’ introduces various types of block design, and then relates them to ... More
Combinatorics: A Very Short Introduction

Combinatorics: A Very Short Introduction  

Robin Wilson

Print Publication Year: 
Apr 2016
Published Online: 
Apr 2016
eISBN: 
9780191790324
DOI: 
10.1093/actrade/9780198723493.001.0001
Item type: 
book
ISBN: 
9780198723493
Combinatorics is the branch of mathematics concerned with selecting, arranging, and listing or counting collections of objects. Dating back some 3000 years, and initially consisting mainly ... More

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