Ruby program to print Fibonacci series

Fibonacci program in Ruby
Fibonacci series is nothing but a series of numbers in which the current number is the sum of the previous two numbers

first=0
second=1
nextterm=0

puts "Enter the number of terms:-"
n=gets.chomp.to_i

puts "The first #{n} terms of Fibonacci series are:-"
c=1
while(c<=n+1)
   if(c<=1)
       nextterm=c
   else
       puts nextterm
       nextterm=first+second
       first=second
       second=nextterm
   end
   c+=1
end

Output

Enter the number of terms:-
4
The first 4 terms of Fibonacci series are:-
1
1
2
3

Enter the number of terms:-
6
The first 6 terms of Fibonacci series are:-
1
1
2
3
5
8

Ruby program to print Fibonacci series

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