Did you notice our new format? I hope you like it! This is a time of new beginnings for Parabola as we hand over our publishing to AMT Publishing.
David Harvey
A conference was held recently at the University of New South Wales to celebrate the ninetieth birthday of well-known local mathematician George Szekeres.
David Harvey
The ‘Happy End’ problem is a geometrical problem that has permeated George Szekeres’ life.
Bruce Henry
On 26 October 2001 a large block of ice was unveiled inside an ice fridge at Darling Harbour in Sydney to launch the start of the “World’s Coolest Tim-Tam” promotion.
Rodney K. James
Thiz iz a nartical on a voy ding miss takes.
Peter G. Brown
In May of 2000, the Clay Mathematical Institute (an organisation at MIT) organised a meeting in the Coll`ege de France in Paris, where, among other things, two prominent Mathematicians gave a list of 7 Problems for the Third Millenium.
Peter G. Brown
In May of 2000, the Clay Mathematical Institute (an organisation at MIT) organised a meeting in the Coll`ege de France in Paris, where, among other things, two prominent Mathematicians gave a list of 7 Problems for the Third Millenium.
Q1111 A grandfather clock takes 30 seconds to strike 6 o’clock. How long does it take to strike 12 o’clock?
Q1105. A hollow square is an arrangement of dots in a square with a central square left blank. For example here are thirty two dots arranged in a hollow square.
John D. Steele
In an earlier article (Parabola, 37(3), (2001), 7-11) I talked about computer algebra systems: software packages that, as the name suggests, do algebra.
Katie Lam
The equation x2−dy2=1 , where d is a given integer, is known as Pell’s equation.
PRIZEWINNERS – SENIOR DIVISION
FIRST PRIZE
Stewart Wilcox North Sydney Boys’ High School
Q1121. Prove that g(x)=30x3+80x2+72x+66 is irreducible over the integers by showing it has no roots modulo 13 . What are the roots of g(x) modulo 7 ?
Q1111. A grandfather clock takes 30 seconds to strike 6 o’clock. How long does it take to strike 12 o’clock?