Slicing operator & Step operator:
Example:
name = 'abcdefghijklmn'
name[2:8] --> Slicing Operator-->Used for extracting portions of a sequence.
name[2:8:3] --> Step Operator-->The step operator defines the interval between indices. A positive step moves forward, while a negative step moves backward.
1) Syntax to get following output:
1 2 3 4 5
1 2 3 4
1 2 3
1 2
1
Method:1(Using 2 variables)
start, end = 1, 6
while end>1:
for num in range(start,end):
print(num, end=' ')
print()
end-=1
Method:2(Using single variable)
end = 6
while end>1:
for num in range(1,end):
print(num, end=' ')
print()
end-=1
Method:3(Without using variables)
for end in range(6,1,-1):
for num in range(1,end):
print(num, end=' ')
print()
Method:4
for row in range(5):
for col in range(5-row):
print(col+1, end=' ')
print()
Output:
1 2 3 4 5
1 2 3 4
1 2 3
1 2
1
2) Syntax to get following output:
1
1 2
1 2 3
1 2 3 4
1 2 3 4 5
for row in range(2,7):
for col in range(1,row):
print(col,end=' ')
print()
Output:
1
1 2
1 2 3
1 2 3 4
1 2 3 4 5
3) Syntax to get following output:
2 4 6 8 10
2 4 6 8
2 4 6
2 4
2
for row in range(5):
for col in range(5-row):
print((col+1)*2, end=' ')
print()
Output:
2 4 6 8 10
2 4 6 8
2 4 6
2 4
2
4) Syntax to get following output:
1 2 3 4 5
2 4 6 8
3 6 9
4 8
5
for row in range(5):
for col in range(5-row):
print((col+1)*(row+1), end=' ')
print()
Output:
1 2 3 4 5
2 4 6 8
3 6 9
4 8
5
Task:
Draw this "kolam" without taking your hand out from paper:
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