Hostname: page-component-78c5997874-j824f Total loading time: 0 Render date: 2024-11-20T03:11:14.622Z Has data issue: false hasContentIssue false

100.20 Outside the box

Published online by Cambridge University Press:  14 June 2016

Jim Simons*
Affiliation:
Foxcote, Noverton Lane, Prestbury, Cheltenham GL52 5BB e-mail: jimsimonsfoxcote@googlemail.com

Abstract

Image of the first page of this content. For PDF version, please use the ‘Save PDF’ preceeding this image.'
Type
Notes
Copyright
Copyright © Mathematical Association 2016 

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

1.Lee, S. and Stripp, C., MEI Insights I: About MEI, Mathematics in School, 44, 3 (May 2015) pp. 1719.Google Scholar
2. MEI, Maths Item of the Month Archive 2013, available at http://www.mei.org.uk/month_item_13Google Scholar
3.O'Connor, J. J. and Robertson, E. F., Pell's equation, available at http://www-groups.dcs.st-and.ac.uk/~history/HistTopics/Pell.htmlGoogle Scholar
4.Hardy, G. H. and Wright, E. M., An introduction to the theory of numbers (4th edn.), Oxford University Press (1960).Google Scholar
5.Jahnel, J.. When is the (co)sine of a rational angle equal to a rational number?, available at http://www.uni-math.gwdg.de/jahnel/Preprints/cos.pdfGoogle Scholar