GCSE Edexcel Other graphs - Edexcel The equation of a circle – Higher The most commonly occurring graphs are quadratic, cubic, reciprocal, exponential and circle graphs. Their equations can be ...

But this is also Pi Day, and a very special Pi Day at that. Why so special? The date is 3/14/15, the first five digits in the ratio of the circumference of a circle to its diameter.

A Japanese man breaks the world record for reciting pi, the ratio of the circumference of a circle to its diameter, from memory.

GCSE AQA Other graphs - AQA The equation of a circle – Higher The most commonly occurring graphs are quadratic, cubic, reciprocal, exponential and circle graphs. Their equations can be used to ...