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Pushing back Pi

Numbers like Pi have no repeating pattern. So just how accurately do we know what it is?

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Cosmos launch

COSMOS, the world's first national cosmology supercomputer, has been launched.

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Line drawing of Helen of Troy

Dynamic programming: an introduction

The previous feature, "Mathematics, marriage and finding somewhere to eat" investigated the problem of finding the best potential partner from a fixed number of potential partners using a technique known as "optimal stopping". Inevitably, mathematicians and mathematical psychologists have constructed other models of the problem...

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Wedding photo

Decoding a war time diary

An account of how a prisoner of war's diary was recently decoded. Donald Hill wrote his diary in a numerical code, disguised as a set of mathematical tables, while in Hong Kong during and after the Japanese invasion of 1941.

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Are the polls right?

The British General Election (May 1997) is an example of how simple mathematical ideas help in understanding information that involves numbers.
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Image of the game layout

What mathematicians get up to

After 5,000 years, the game of Nine Men's Morris has succumbed to the power of modern computing, plus other recent mathematical discoveries in the world of games.

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Agner Krarup Erlang (1878 - 1929)

The mathematics underlying today's complex telephone networks is still based on his work. Erlang was the first person to study the problem of telephone networks.
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BT's worldwide network management centre

Call routing in telephone networks

Find out how modern telephone networks use mathematics to make it possible for a person to dial a friend in another country just as easily as if they were in the same street, or to read web pages that are on a computer in another continent.

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Women in the history of mathematics

Mathematics is not only for men, says the author of the new booklet "Women in the History of Mathematics from Antiquity to the Nineteenth Century".