module FibonacciSeries
Constants
- VERSION
Public Class Methods
at(num)
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# File lib/fibonacci_series.rb, line 4 def at(num) raise "invalid index" unless num > 0 if num == 1 0 elsif num == 2 1 else at(num-1) + at(num-2) end end
Private Instance Methods
at(num)
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# File lib/fibonacci_series.rb, line 4 def at(num) raise "invalid index" unless num > 0 if num == 1 0 elsif num == 2 1 else at(num-1) + at(num-2) end end