#38 Python Tutorial for Beginners | Fibonacci Sequence

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[clanhindustan]

# Assignment Fibonacci series
# Thank You Sir.

def fib(num):
if(num<0):
print("Invalid number")
else:
a=0
b=1

print(a)
print(b)

for i in range(num+1):
c=a+b
a=b
b=c
if(c<=num):
print(c)
else:
break
num=int(input("Enter the number till you want to see in fibonacci series : "))
fib(num)

[talhaordukaya]

Nice and clear answer for the question:
def fib():
a, b = 0, 1
while a < 100:
print(a, end=" ")
a, b = b, a+b
fib()

[anamikaupadhya]

My every morng in this lockdown start with your lecture of python sir ..thanx a lot sir👍👍

[sreerajva]

def fib_last(n):
a=0
b=1

if n<1:
print("Invalid number entered")
elif n == 1:
print(a)
else:
# print(a)
# print(b)
for i in range(2, n):
c=a+b
a=b
b=c
d=a+b
if c < n and d > n:
print(c)

[prateekaphale]

a=0
b=1
print(a)
print(b)
for i in range(100):
c=a+b
if c<=100:
a=b
b=c
print(c)
else:
print("done")
break
Your lectures are the best really, and specially in last you give us a problem to solve and that's the best part....Thank you sir, God bless you :)

[davidr.flores]

The way you translated the math into code was easier to understand than many other presenters. Thanks a million.

[ch_rahulsharma]

I was actually learning from a Udemy video, but that was a bit confusing so I started to search on YouTube and I found this video. This video is extremely useful and helped me to understand the concept. Also, the use of visual representation makes things a lot more intuitive and easy. Thanks a lot Sir

[najamulsaqib]

def fib(num):
lst = [0, 1]
for i in range(20):
n = lst[i] + lst[i+1]
if n < num:
lst.append(n)
if n > num:
break
return lst
x = fib(100)
print(x)

[akhild]

assignment:
def fib(x):
a=0
b=1
if x<=0:
print("in valid")
elif x==1:
print(a)
else:
print(a)
print(b)
for i in range(2, x):
c=a+b
a=b
b=c
if(c<=x):
print(c)
x=int(input("enter the number of values"))
fib(x)

[mylifebd]

def fibonnaci(n):
a = 0
b = 1
sequence = []

while a < n:
sequence.append(a)
c = a + b
a = b
b = c

return sequence



print(fibonnaci(100))

[INDIAN-kqyo]

Hi Navin, Your teaching is one of the best. You can only teach us the concept. It is our duty to play and try different approach. You have taught us every thing to create the following function.
This function is memory efficient and you don't have to check for 0 or negative inputs.
def fib(n):
a=0
b=1
for i in range(0, n):
print(a)
a, b = b, a+b

[mamillajaswanth]

def fib(n):
a=0
b=1
if(n>0):
if(n==1 ):
print(a)
else:
print(a)
print(b)

for i in range(2, n):
a, b=b, a+b
print(b)
else :
print('enterd negative value')

fib(10)

[ritusree]

n=int(input('Please type the no. of values-'))

def fib(n):
a=0
b=1
c=a+b
if n<0:
print('Invalid input')
else:
print(a)
print(b)
for i in range(2, n+1):
c=a+b
a=b
b=c
c=a+b
print(c)
return(c)
print()
fib(n)

Completed your assignment for the brilliant explanation.

[JohnvictorPaul-ecsm]

def fib(x):

a=[0, 1]


for i in range(x):
b=a[-2]+a[-1]
if b<x:
a.append(b)

return a

print(fib(104))

[satyammhetre]

I tried this code and it worked!
This is bit simpler than yours.

a = 0
b = 1

x = int(input("Please enter a number: "))

while a <= x:
print(a)
a, b = b, a+b

[vnd]

Last assignment in this video:-
def fib(n):
a, b = 0, 1
c = 0
l = []
while c<n:
l.append(c)
c = a+b
a, b = b, c
print(l[-1])

fib(10)

[sheoran]

I feel this is a better way as there is no need to print first two values, everything is handled by the for loop:
l=int(input("enter length: "))
def fib(l):
x, y = 0, 1
for i in range(l):
print(x)
next=x+y
x=y
y=next

fib(l)

[vinaykumarbellala]

Def fib(n):
a=0
b=1
if n==0 or n==1:
print(a)
elif n<0:
print("please enter positive integer")
else:
print(a)
print(b)
c=a+b
for i in range(c, n-1)
print(c)
a=b
b=c
c=a+b
if c>n:
break
fib(100)

[harshal]

def fib(n):
a=0
b=1
if n==1:
print(a)
else:
print(a)
print(b)
for i in range (2, n):
c=a+b
a=b
b=c
if c>n:
break
print(c)






fib(n)

[speaktothepoint]

Fibonacci series is one of the evergreen topics that always interests both the Mathematicians and the Programmers. Navin's presentations is awesome - as always !!