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Symmetrical paths on a calculator

Published online by Cambridge University Press:  01 August 2016

A. F. Bainbridge  and
P. A. Binding
A. F. Bainbridge
Affiliation:
British Aerospace Systems and Equipment, Plymouth, Devon PL6 6DE
P. A. Binding
Affiliation:
Department of Mathematics and Statistics, The University of Calgary, Calgary, Alberta T2N 1N4
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Extract

The first author discovered the property below while playing with his pocket calculator, and the second author then tried to find out what was behind this property. We enjoyed this voyage of discovery and thought that you might like to share it with us.

Actually, a calculator is not essential, but you will need a square array like in front of you. If your calculator looks different, that is no problem: all standard keyboards will work just as well.

Type
Research Article
Information
The Mathematical Gazette , Volume 75 , Issue 474 , December 1991 , pp. 399 - 401
Copyright
Copyright © The Mathematical Association 1991

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