[mathprof]

Or the area of a sphere

[Old Professer]

It is the volume of a sphere that is fascinating, fractions... the only math expression where nothing is ever lost, just difficult to pry loose from its partner(s).

[El Gato]

Or the area of a sphere

Or the strength of a radar return from a ballistic missile warhead.

Star Wars wouldn't be possible without Pi.

GPS makes extensive use of Pi too.

[Beagle8U]

From your screen name I take it you like math, so here is a fun formula that, while not exact, comes very close and is useful.

To figure the weight of any fish by measuring with a flexible tape measure. ( such as a tailor uses)

LG squared, divided by 800 = WP

L being length in inches...G being girth in inches... and WP= weight in pounds.

So length times girth squared, divided by 800 will give you weight.

It works with any fish regardless of shape...ie.. a bluegill or a northern pike.

Sorry I'm too puter illiterate to write it in algebra form on the puter.