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旧 2021-04-24, 17:42   #1
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默认 Easter Sunday and April Fools - Cleve Moler on Mathematics and Computing


What do the years 2018, 2029 and 2040 have in common? They are the only years in the 21st century when Easter Sunday occurs on April Fools Day.

ContentsFool Meets Bunny21st CenturyEaster DayEaster functionFool Meets Bunny for y = 1:100 april_first = datenum(y+2000,4,1); delta(y) = easter(y+2000) - april_first; end years = 2000 + find(delta == 0)years = 2018 2029 204021st CenturyThis plot shows the April Fools Easter Sundays in the 21st century and also shows that Easter can occur on any date between March 22 between April 25.

p = plot(delta,'.'); annotate(p,delta) Easter Day>



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