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- 1. Recreational Maths
- 2. What is Recreational Maths ? <ul><li>Recreational Mathematics is an umbrella term, referring to Mathematical puzzles and Mathematical games. </li></ul><ul><li>Not all problems in this field require a knowledge of advanced Mathematics, and thus, recreational Mathematics often attracts the curiosity of non-Mathematicians, and inspires their further study of Mathematics. </li></ul>
- 3. <ul><li>This genre of mathematics includes logic puzzles and other puzzles that require deductive reasoning, the aesthetics of mathematics, and peculiar or amusing stories and coincidences about mathematics and mathematicians. Some of the more well-known topics in recreational mathematics are magic squares and fractals. </li></ul>
- 4. Mathematical games <ul><li>Mathematical games are multiplayer games whose rules, strategies, and outcomes can be studied and explained by mathematics. The players of the game may not need to use mathematics in order to play mathematical games. For example, Mancala is a mathematical game, because mathematicians can study it using combinatorial game theory, even though no mathematics is necessary in order to play it. </li></ul>
- 5. The "Mathematical Games" column ran by Martin Gardener from 1956 to 1981 in the American Magazine “Scientific America” and was the first introduction of many subjects to a wider audience, including : <ul><ul><ul><ul><ul><li>Flexagons </li></ul></ul></ul></ul></ul><ul><ul><ul><ul><ul><li>John Horton Conway's Game of Life </li></ul></ul></ul></ul></ul><ul><ul><ul><ul><ul><li>Polyominoes </li></ul></ul></ul></ul></ul><ul><ul><ul><ul><ul><li>The Soma cube </li></ul></ul></ul></ul></ul><ul><ul><ul><ul><ul><li>Hare and Hounds </li></ul></ul></ul></ul></ul><ul><ul><ul><ul><ul><li>Tangrams </li></ul></ul></ul></ul></ul><ul><ul><ul><ul><ul><li>Penrose tiling </li></ul></ul></ul></ul></ul><ul><ul><ul><ul><ul><li>The work of M. C. Escher </li></ul></ul></ul></ul></ul><ul><ul><ul><ul><ul><li>Fractals </li></ul></ul></ul></ul></ul>
- 6. <ul><li>Mathematical puzzles require mathematics in order to solve them. They have specific rules, as do multiplayer games, but mathematical puzzles don't usually involve competition between two or more players. Instead, in order to solve such a puzzle, the solver must find a solution that satisfies the given conditions. </li></ul><ul><li>Logic puzzles are a common type of mathematical puzzle. Conway's Game of Life and fractals are also considered mathematical puzzles, even though the solver only interacts with them by providing a set of initial conditions. </li></ul>Maths Puzzles
- 7. <ul><li>Tangrams </li></ul><ul><li>Palindrome </li></ul><ul><li>Rubik’s Cube </li></ul><ul><li>Magic Square </li></ul>Common and Famous Topics of Recreational Maths
- 8. Tangrams <ul><li>The tangram is a dissection puzzle consisting of seven flat shapes, called tans , which are put together to form shapes. The objective of the puzzle is to form a specific shape (given only in outline or silhouette) using all seven pieces, which may not overlap. </li></ul>
- 9. Palindrome <ul><li>A palindromic number or numeral palindrome is a 'symmetrical' number like 16461, that remains the same when its digits are reversed. The first palindromic numbers (in decimal) are: </li></ul><ul><li>0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 11, 22, 33, 44, 55, 66, 77, 88, 99, 101, 111, … </li></ul><ul><li>Palindromic numbers receive most attention in the realm of recreational mathematics. A typical problem asks for numbers that possess a certain property and are palindromic. For instance, </li></ul><ul><li>The palindromic primes are 2, 3, 5, 7, 11, 101, 131, 151, … </li></ul><ul><li>The palindromic square numbers are 0, 1, 4, 9, 121, 484, 676, 10201, … </li></ul>Palindrome
- 10. Rubik’s Cube <ul><li>The most famous of recent puzzles is the Rubik's cube invented by the Hungarian Ernö Rubik. Its fame is incredible. Invented in 1974, patented in 1975 it was put on the market in Hungary in 1977. However it did not really begin as a craze until 1981. By 1982 10 million cubes had been sold in Hungary, more than the population of the country. It is estimated that 100 million were sold world-wide. </li></ul><ul><li>The cube consists of 3 × 3 × 3 smaller cubes which, in the initial configuration, are coloured so that the 6 faces of the large cube are coloured in 6 distinct colours. The 9 cubes forming one face can be rotated through 45°. There are 43,252,003,274,489,856,000 different arrangements of the small cubes, only one of these arrangements being the initial position. Solving the cube shows the importance of conjugates and commutators in a group. </li></ul>
- 11. Magic Square <ul><li>In recreational mathematics, a magic square is a square which is divided into smaller squares and each smaller square usually contains distinct integers. In a magic square, the sum of all the integers in every horizontal, vertical and diagonal line is the same. </li></ul>
- 12. Thank You

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