PIE FOR PI: St John’s College Woodlawn students Kalani Knight, Ben Cornwell, Dylan Tulk and Quin McKeown with maths teacher Brad Ryall celebrate Pi Day.
PIE FOR PI: St John’s College Woodlawn students Kalani Knight, Ben Cornwell, Dylan Tulk and Quin McKeown with maths teacher Brad Ryall celebrate Pi Day. Marc Stapelberg

Celebrating the life of pi with pie

ST JOHN'S College Woodlawn maths teacher Brad Ryall wants his students to be as passionate about circles as he is.

Today is international Pi Day and mathematicians around the world will mark the occasions with their clocks.

"It is significant as the date and time will signify the first 10 digits of the symbol pi and it only comes round once a century - 03/14/15 (American date style) at nine hours, 26 minutes and 53 seconds," Mr Ryall said.

"It's a magical number - it's irrational, transcendental, it's the ratio of the circumference of the diameter of a circle, it doesn't stop and it never repeats. Maths is a journey and people have long been fascinated by pi.

"It is the rock star of the number world and is more well-known than its poorer cousins e and i."

Mr Ryall said that 2000 years ago people only knew pi to 10 decimal places.

"If you know pi to 25 decimal places you can work out the circumference of the universe to the nearest atom," he said.

For student Aydin Neighbour, 11, pi held enough fascination to ensure he went home and learnt the sequence up to 100 decimal places.

"I had a look on the internet and memorised pi," Aydin said. "I learnt you can help yourself remember the sequence by using sentences."

And although Aydin didn't end up in a boat with a tiger, an orangutan and zebra, he did get to enjoy a slice of pie during class.



Explained: When are the Byron Bay new traffic lights on?

Premium Content Explained: When are the Byron Bay new traffic lights on?

The signals will delay traffic from the west of the interchange.

14 Northern NSW restaurants earn prestigious accolade

Premium Content 14 Northern NSW restaurants earn prestigious accolade

We’re spoiled for choice with these truly amazing restaurants. How many have you...

Qld Origin team's raucous party at luxury Byron house

Premium Content Qld Origin team's raucous party at luxury Byron house

The owner of the property landed in court over a dispute with police