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##### This cache has been archived.

Na'wal: Thanks to everyone for attending. It was a great event. Til next time... [:)]

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## Irrational Number Day

A cache by Na'wal Message this owner
Hidden : Saturday, March 14, 2015
Difficulty:
Terrain:

Size:  (other)

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# Come and celebrate Pi Day

March 14 2015 is pi day.

If you read the date (American style) it's 31415 so why not celebrate this day with a geocaching party. You will even earn a special, shiny, virtual geocaching souvenir for attending.

Where ~ S 38° 10.314 E 144° 19.314 Highton Recreation Reserve

When March 14, 2015 5:30pm til 6:00pm

π is commonly defined as the ration of a circle's circumference C to its diameter d:

$\pi = \frac{C}{d}$

The ratio C/d is constant, regardless of the circle's size. For example, if a circle has twice the diameter of another circle it will also have twice the circumference, preserving the ratio C/d. This definition of π implicitly makes use of flat geometry (Euclidean); although the notion of a circle can be extended to any curved (non-Euclidean) geometry, these new circles will no longer satisfy the formula π = C/d. There are also other definitions of πthat do not immediately involve circles at all. For example, π is twice the smallest positive x for which cos(x) equals 0

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