15 Jun
2011
15 Jun
'11
2:02 p.m.
On 2011 Jun 15, at 1:17 PM, Fred Cisin wrote:
Hollerith (it's too bad that he didn't make it to his 30th birthday
:-),
mathematical algorithms:
Q1: When is Hollerith's next birthday?
Q2: How many is that?
Q3: Why is 1900 especially important to that calculation?
He didn't even make it to his 20th birthday, no?
A3: Century years are not leap years even though divisible by 4, unless
divisible by 400 (..the arcane things one remembers).