Learning group theory, integrals of logarithms, undergraduate math problems, and some paintings ... sharing my personal interests!

Welcome to John Coffey's page of interesting finds from my travels in mathematics.  There are interactive programs to 'teach-yourself' group theory, studies of integration in the complex plane, and solutions to a selection of exam and competition problems, as follows:

• PermGroups and Word Groups -- interactive computer programs for teach yourself the basics of mathematical group theory, with fully worked examples
• Definite integrals of rational functions involving the logarithm, log(x), and polynomials, using complex variables.
• Maths challenge problems and JMC's solutions.

This site is for students and amateurs who enjoy learning and exploring maths as a hobby.  I am not a professional mathematician, so there are no high-powered research papers here -- just the work of an enthusiast.  Join in by e-mailing me your views and your own interesting finds in maths.

I also paint pictures, mainly portraits.

I will add further problems and paintings, and even perhaps some music, from time to time.

John Coffey, Cheshire, England, 2009

e-mail comments to johnc@mathstudio.co.uk