Preface.- Measures.- Amicable numbers.- Probability.- Fractions.- Time.- Notations.- Bells.- Primes.- Music.- Finale.- Appendix.
Dr Barnes' principal achievements have been in the area of computer
programming language design. He designed the language RTL/2 whilst
with ICI. This was widely used in the 1970s and 80s for process
control in the UK, the Netherlands and South Africa. The first
ticket barrier system on the London Underground was an early
example. He was a member of the Ada language design teams. Ada is
widely used in safety critical applications such as those found in
defence systems generally, avionics, air traffic control and
railroad signalling. He has published twelve books: RTL/2 Design
and Philosophy (1976); Programming in Ada (1982); Programming in
Ada 95 (1996); High Integrity Ada (1997); Ada 95 Rationale (1997);
High Integrity Software (2003); Programming in Ada 2005 (2006); Ada
2005 Rationale (2008); Gems of Geometry (2009); SPARK (2012); Ada
2012 Rationale (2013); Programming in Ada 2012 (2014). "Programming
in Ada" went through four editions and was translated into six
languages.
Dr Barnes has published many papers and given many lectures
and tutorials on various aspects of programming. Although moving
towards retirement he still gives occasional lectures including
lectures for postgraduate courses. He has recently rediscovered an
interest in mathematics and has given a number of popular courses
at the Universities of Reading and Oxford as part of their
Continuing Education programs; Gems of Geometry (now in a second
edition) is based on one set of these courses.
“Nice numbers delivers a multi-layered experience to readers of
differing mathematical knowledge. … The versatility of this book
means that it is suitable for anything between a few paragraphs'
glance up to a serious level of study. Those of all mathematical
abilities will be able to pick it up and find something that
interests them and their level of engagement.” (Harry Gray, Plus,
plus.maths.org, August, 2018)
“The lectures comprise the ten chapters of the book. … the book is
suitable for any reader who can do high school level mathematics
and has the interest and curiosity to follow Barnes on his
wide-ranging explorations. Each chapter ends with suggestions for
further reading; most chapters have someexercises for the reader to
attempt … .” (Michael Caulfield, MAA Reviews, July, 2017)
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