The introduction, this century, of computers into mathematics has certainly revolutionised the subject, and led to many new areas of mathematics previously unimagined.
It is a well known fact in cricket that the new ball when bowled by a fast bowler will often swing in its flight on the way down the pitch to the batsman.
In this issue, we bring you four articles which illustrate the diversity of Mathematics. In the article on Fermat’s Last Theorem, Professor Michael Cowling has shown how a long-standing problem about integers has recently been solved by looking at the graphs of functions which appear to be quite irrelevant.
Most of us will have a tree in our homes over Christmas. To the mathematician, a tree is a special type of graph.