Example programs in Python: Fibonacci Series

 Writing Fibonacci Series in Python using if else statement and for loop

Example:1

x=int(input("enter the number of terms "))

y=[]

if x==1:

    z=0

    y.append(z)

    print(y)

elif x==2:

    z=0

    q=1

    y.append(z)

    y.append(q)

    print(y)

else:

    z=0

    q=1

    y.append(z)

    y.append(q)

    for i in range(3,x+1):        

        l=y[i-3]

        m=y[i-2]

        k = l + m

        #k=y[i-1]

        y.append(k)

print(y)

Output

enter the number of terms 10

[0, 1, 1, 2, 3, 5, 8, 13, 21, 34]

----------------------------------------------------------------------------------

Example 2: Fibonacci Series

x=int(input("Enter the number of terms: "))

a=0

b=1

print(a,b,end=" ")

for i in range(2,x):

    c = a+b

    print(c,end=" ")

    a=b

    b=c

   

Output

0 1 1 2 3 5 8 13 21 34