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Pattern

Nested Loops

Nested Loops

Sequence Sum
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# 1/1! + 2/2! + 3/3! ... nth
n = int(input('Enter a number :\n'))
print(f'Your Enter number is {n} \n')
sum = 0
fact = 1

for i in range(1, n+1):
    fact = fact * i
    sum = sum + (i/fact)

print(f'Your Total sum of this sequence is {sum}')
Output
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Your Enter number is 5 

Your Total sum of this sequence is 2.708333333333333


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5
# pairing 

for i in range (1, 3):
    for j in range (1, 5): 
        print(i, j)
Output
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1 1
1 2
1 3
1 4
2 1
2 2
2 3
2 4


*`

**`

***`

****`


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# user input 
n = int(input('Enter the number of star you want : \n'))
print(f'Your enter number is {n}\n')

# loops
for i in range(1, n+1):
    for j in range(1, i+1):
        print('*', end='')
    print()
Output
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Your enter number is 5

*
**
***
****
*****


1

121

12321

1234321

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# user input 
n = int(input('Enter the number of star you want : \n'))
print(f'Your enter number is {n}\n')

# loops
for i in range(1, n+1):
    for j in range (1, i+1):
        print(j, end='')
    for k in range(i-1, 0, -1):
        print(k, end='')

    print()
Output
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Your enter number is 5

1
121
12321
1234321
123454321

Loop Control Statement

continue

Control the Loop

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# continue

for i in range(1, 11):
  if i == 6:
    print('___ Which number is not in series')
    continue
  print(i)
Output
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3
4
5
___ Which number is not in series
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10


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for i in range(1, 11):
  if i == 6:
    print('___ Which number is not in series')
    break
Output
1
___ Which number is not in series 


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# continue

for i in range(1, 11):
  if i == 6:
    print('___ Which number is not in series')
    break
  print(i)
Output
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1
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4
5
___ Which number is not in series


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# does primary number is ?

lower_range = int(input('enter the Lower number :'))
upper_range = int(input('enter the Lower number :'))
print(f"Your Lower Range {lower_range}, Upper Range {upper_range}")
for i in range(lower_range, upper_range+1):
    for j in range(2, i):
      if i % j == 0:
          break
    else:
        print(i)
Output
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Your Lower Range5, Upper Range 12
5
7
11


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# when using while and when using for in text

# Use "while" when you want to loop based on a condition.
# Example: Print numbers from 1 to 5
count = 1
while count <= 5:
  print(count)
  count += 1
Output
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5
1
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3
4
5


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# Use "for" when you want to iterate over a sequence (like a string).
# Example: Print each character in a string
text = "Hello"
for char in text:
  print('\n',char)
Output
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H

e

l

l

o