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1089 and All That: A Journey Into Mathematics, David Acheson
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**About this book :- **
**1089 and All That: A Journey Into Mathematics ** written by
** David Acheson **

Think of a three-figure number. i.e 782

Any three-figure number will do, so long as the first and last figures differ by 2 or more.

Now reverse it, and subtract the smaller number from the larger. So, for example, 782 – 287 = 495.

Finally, reverse the new three-figure number, and add: 495 + 594 = 1089.

At the end of this procedure, then, we have a final answer of 1089, though we have to expect, surely, that this final answer will depend on which three-figure number we start with. But it doesn’t. The final answer always turns out to be 1089.

This was a book for children, published by a well-known British newspaper of the time, and it contained a mixture of adventure stories and more educational articles with titles like ‘Pond Life’.

(David Acheson)

**Book Detail :- **
** Title: ** 1089 and All That: A Journey Into Mathematics
** Edition: **
** Author(s): ** David Acheson
** Publisher: ** Oxford University Press
** Series: **
** Year: ** 2010
** Pages: ** 128
** Type: ** PDF
** Language: ** English
** ISBN: ** 9780199590025,0199590028
** Country: ** US

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**About Author :- **

Author ** Gerald Budge Folland ** is an American mathematician and a professor of mathematics at the University of Washington. His areas of interest are harmonic analysis (on both Euclidean space and Lie groups), differential equations, and mathematical physics. The title of his doctoral dissertation at Princeton University (1971) is "The Tangential Cauchy-Riemann Complex on Spheres".

David John Acheson is a British mathematician at Jesus College, Oxford. He was educated at Highgate School, King's College London (BSc Mathematics and Physics, 1967) and the University of East Anglia (PhD, 1971). He was appointed a Fellow in Mathematics at Jesus College, Oxford in 1977 and became an Emeritus Fellow in 2008. He served at President of the Mathematical Association from 2010 to 2011. He was awarded an Honorary Doctorate of Science from the University of East Anglia in 2013.

His early research was on geophysical and astrophysical fluid dynamics, beginning with the discovery in 1972 of a magnetic 'field gradient' instability in rotating fluids.[4] In 1976, he discovered the first examples of wave over-reflection (i.e. reflection coefficient greater than unity) in a stable system. In 1978 his research focused on magnetic fields and differential rotation in stars, with new results on magnetic buoyancy, the Taylor instability, Goldreich-Schubert instability, and, 'magnetorotational' instability. In 1992 he discovered the 'upside-down pendulums theorem' (which is very loosely connected with the Indian Rope Trick).

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**Book Contents :- **
**1089 and All That: A Journey Into Mathematics ** written by
** David Acheson **
cover the following topics.

1. 1089 and All That

2. ‘In Love with Geometry’

3. But … that’s Absurd …

4. The Trouble with Algebra

5. The Heavens in Motion

6. All Change!

7. On Being as Small as Possible

8. ‘Are We Nearly There?’

9. A Brief History of p

10. Good Vibrations

11. Great Mistakes

12. What is the Secret of All Life?

13. e = 2.718 …

14. Chaos and Catastrophe

15. Not Quite the Indian Rope Trick

16. Real or Imaginary?

Suggestions for Further Reading

The 1089 and All That Website

Acknowledgments

Picture Credits

Index

**Note:-**

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