maetl/eight.rb

Created November 14, 2015 04:12

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Magic numbers

Raw

	(1..9).reduce('') do \|m,i\|
	s = i.to_s
	m << s
	r = "#{m} * 8 + #{i.to_s}"
	puts r + " = " + eval(r).to_s
	m
	end

Author

maetl commented Nov 14, 2015

1 * 8 + 1 = 9
12 * 8 + 2 = 98
123 * 8 + 3 = 987
1234 * 8 + 4 = 9876
12345 * 8 + 5 = 98765
123456 * 8 + 6 = 987654
1234567 * 8 + 7 = 9876543
12345678 * 8 + 8 = 98765432
123456789 * 8 + 9 = 987654321

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