# The world of MATHS: LOGIC

## Related Articles

- MAGIC numbers: the Golden RATIO. // Think of a Number;2005, p34
A chapter from the book "Think of a Number: A Fascinating Look at the World of Numbers" is presented. It discusses the concept of phi which the famous painter Leonardo da Vinci called as the "golden ratio." It presents how it is derived and its numerical value. It also elaborates on the strange...

- MAGIC numbers: BIG NUMBERS. // Think of a Number;2005, p36
A chapter from the book "Think of a Number: A Fascinating Look at the World of Numbers" is presented. It discusses big numbers, what they are called, and how they are written. It mentions the concept of powers or exponents which indicates the number of times a number is to be multiplied by...

- MAGIC numbers: PRIME suspects. // Think of a Number;2005, p40
A chapter from the book "Think of a Number: A Fascinating Look at the World of Numbers" is presented. It provides an analysis of prime numbers. It states that a prime number is defined as a whole number that cannot be divided into other whole numbers except for 1. Some mathematicians reportedly...

- SHAPING up: SHAPES that STRETCH. // Think of a Number;2005, p66
A chapter from the book "Think of a Number: A Fascinating Look at the World of Numbers" is presented. It focuses on three-dimensional (3D) shapes that are topologically equivalent. Examples of objects that are topologically equivalent are a coin and a marble, a cup and a doughnut, and a square...

- SHAPING up. // Think of a Number;2005, p50
A chapter from the book "Think of a Number: A Fascinating Look at the World of Numbers" is presented. It focuses on different shapes. It mentions that although ancient Greeks were not so good with numbers, they were very good at mathematics because they understood shapes. According to the...

- SHAPING up: The 3rd Dimension. // Think of a Number;2005, p58
A chapter from the book "Think of a Number: A Fascinating Look at the World of Numbers" is presented. It focuses on various shapes with three dimensions. A tetrahedron is comprised of four equilateral triangles like a pyramid except that its base is triangular instead of square. A cube is made...

- SHAPING up: Footballs and buckyballs. // Think of a Number;2005, p60
A chapter from the book "Think of a Number: A Fascinating Look at the World of Numbers" is presented. It discusses icosahedrons. Such shape is composed of 20 hexagons and 12 pentagons. A football has the same characteristics although the other panels can be different in terms of shape and...

- SHAPING up: MIRROR MIRROR. // Think of a Number;2005, p68
A chapter from the book "Think of a Number: A Fascinating Look at the World of Numbers" is presented. It focuses on shapes with lateral symmetry. Objects are said to have lateral symmetry if their two halves look like reflections. The axis of symmetry is the line down the middle. Puzzles and...

- Where do NUMBERS come from?: Nothing really MATTERS. // Think of a Number;2005, p22
A chapter from the book "Think of a Number: A Fascinating Look at the World of Numbers" is presented. It discusses the concept of zero. It argues that zero does not always mean nothing and that if zero is placed on the end of a number, it is multiplied by ten because of the place system, wherein...