Volume 16


Summer is here and the school year is almost over!

Naturally, anyone interested in mathematics should be familiar with bridge, so we shall turn our attention to calculating the probabilities of various events at the bridge table.

The present treatise on Arithmetic, though written so as to be as far as possible complete in itself, is intended primarily for those who have already received some grounding in the subject.

A circle in two dimensions is easily described by its familiar equation

Nothing unites the English like war.
Nothing divides them like Picasso.

Problems in this topic have very little formal mathematical content, but clear logical thought is necessary, and it is essential to read the question accurately. Some nice examples are:

Readers were asked to turn their calculators to literary ends and to fill the numbers supplied by Messrs H.P. and T.I with previously unsuspected meanings.

We present below the second of our series of interviews with mathematics graduates from the University of New South Wales.

Q.467 In a plane are 127 toothed cog-wheels, numbered $(1),(2),\cdots ,(127)$. The teeth of wheel $(1)$ engage those of wheel $(2)$, and similarly $(2)$ is engaged with $(3)$,

Q.441 Prove that the number $111\cdots 11$, consisting of 91 ones, is a composite number.