I know I will find it useful personally. Working when the Easter break is each 
year, is a continuous frustration for me!

> From: R.E. Boss
> I do not know how relevant this is, but it appears to be useful,
> sometimes.
> 
> NB. from
> http://dev.whydomath.org/Reading_Room_Material/ian_stewart/2000_03.html
> EasterSunday =: 3 : 0 NB. y is year(s)
> A=. 19 | y
> 'B C'=. 100 (<....@%~ ,: |) y
> 'D E'=. 4 (<....@%~ ,: |) B
> G=. <. 25 %~ 13 + 8 * B
> H=. 30 | 15 + B + (19*A) - D + G
> 'J K'=. 4 (<....@%~ ,: |) C
> M=. <. (A + 11 * H) % 319
> L=. 7 | 32 + M + (2 * E + J) - H + K
> N=. <. (90 + H + L - M) % 25
> P=. 32 | 19 + H + L + N - M
> |:y,N,:P
> )
> 
>    EasterSunday 2000 + i.10
> 2000 4 23
> 2001 4 15
> 2002 3 31
> 2003 4 20
> 2004 4 11
> 2005 3 27
> 2006 4 16
> 2007 4  8
> 2008 3 23
> 2009 4 12
>    EasterSunday 1000000               NB. from Ian Stewart
> 1000000 4 16
> 
> 
> From the link above " Under the rules of the Gregorian calendar, the
> cycle
> of Easter dates repeats exactly after 5,700,000 years."
> 
> 
> R.E. Boss
> 
> 
> 
> 
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