Write a Program (WAP) to Print Fibonacci Series in Python using for loop with source code. Further, addition of terms of Fibonacci series. This is a good program for beginners, CBSE KV Class 11 and 12 students practical project file and programmers.

**What is Fibonacci Series?**

In Fibonacci series numbers go from 0, 1, 1, 2, 3, 5, 8, 13, 21, 34, ……

The 3rd term is sum of 1 and 2 and 4th term is sum of 2nd and 3rd term and so on…. In general we can say that the nth term is the sum of (n-1)th and (n-2)th term. Here in starting 0,1 is given as default then this series starts growing as per the definition given.

**Write a program WAP to print Fibonacci series up to n terms, also find sum of series**.

**How our program work – an explanation **

n=int(input(“Enter the number of terms in Fibonacci series”)) # n is integer input and asking up to how many terms are

#to be printed

a,b=0,1 #Here a is initialized 0 and b is initialized 1.

s=a+b #sum of first and second term i.e 0,1 then after then in loop other additions

print(a,b,end=” “) #intital 2 means 0 and 1 is printed a=0 b=1

for i in range(n-2): #it is for loop where i (new variable) goes into looping from 1 time to n-2 time . 2 times are printed #from the above line

print(a+b,end=” “) # Now a+b is printed

a,b=b,a+b #now the values will be changed as written this will go on till loop

s=s+b #sum of digits

print()

print(“Sum of”,n,”terms of series =”,s)

**Output fibonacci series in python-**

The shell window ( above window) asks for input which is how much you want to output.

In the first input we have given 5. Which means it will show 5 value . Now the first 2 digits are 0,1

then the loop starts and runs 3 time to give 1,2,3 . Similarly other inputs are there showing their output in their command.Series and the addition of the numbers is also given in last line .

Next the input is 10 and then 20. check them out they are given above pic.

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