Volume 31
, Issue 3

1995

A professor of mathematics at the University of Queensland recently recounted that when she telephoned Griffith University some years ago and asked for the Mathematics Department the receptionist replied, 'We do not have a Mathematics Department. Mathematics is not relevant to the Human Condition".

In the last two issues of Parabola two different proofs - one trigonometric and one geometric - were given of Heron's formula for the area of a triangle and reference was made to Brahmagupta's formula for the area of a quadrilateral.

A fraction is a number of the form $\frac{a}{b}$ where $a,b$ are integers and $b\neq 0$. We learn to add, subtract, multiply and divide fractions on our mothers knee.
$$\frac{ab}{a+ b} = \frac{1}{2}, \frac{bc}{b+c} = \frac{1}{3}, \frac{ac}{a+c} = \frac{1}{9}$$