ayato-p/day_of_the_week.rb

Created December 20, 2012 04:15

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day_of_the_week.rb

	def dw(y,m,d)
	j = y/100
	k = y%100
	h = (d + (((m+1)26)/10).to_i + k + (k/4).to_i + (j/4).to_i - (219))%7
	end

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