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Re:Easter
Posted:
Feb 22, 1995 8:04 AM
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> Date sent: Wed, 22 Feb 1995 13:14:58 -0500 (EST)
> From: Stan Lockwood <s_lockwo@tec.nh.us>
> To: nctm-l@forum.swarthmore.edu
> Does anyone have the "formula", algorithm --or whatever else you want to
> call it--for determining the DATE of Easter in any year?
>
>
One such algorithm:
Let A be the year MOD 19
Let B be the year MOD 4
Let C be the year MOD 7
Let D be (19A + 24) MOD 30
Let E be ( 2B + 4C + 6D + 5) MOD 7
The Date for easter is:
March (22+ D + E) if D+E < 10
April (D+E-9) otherwise
This comes from PASCAL, 2nd Edition, Dale and Weems, DC Heath 1987
Where they got it, I have no idea
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* Department of Mathematics *
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