Sure, it’s corny, but math types need their holiday, too.
I’ll leave it to you to figure out precisely what time of the day corresponds to this approximation of π:
3.14159265358979323846264338327950288419716939937510582097494459230781640628620899862803
4825342117067982148086513282306647093844609550582231725359408128481117450284102701938521
1055596446229489549303819644288109756659334461284756482337867831652712019091456485669234
6034861045432664821339360726024914127372458700660631558817488152092096282925409171536436
7892590360011330530548820466521384146951941511609…
Mathematicians in 2000 calculated π to the quadrillionth digit and have found no repeated patterns, which would eliminate π’s standing as a transcendental number.
OK, this now means I have to tell you my geek math joke (one of them, anyway).
If you want to calculate the volume of a pizza (a frequent need for most people, to be sure), it’s “pi * z * z * a”, where z is the radius and a is the thickness.
Lots more mnemonic than pi r-squared h.
Argh!