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In this lecture we will learn:
- How to implement the logic for pattern printing?
- Pattern printing through python
- Print the pattern of a square
- Print the pattern of the right triangle and reverse right-triangle
- Different approaches to printing a pattern
#1
- Pattern printing improves logical thinking capability.
- Programming is all about solving the problem, we have to understand the problem statement and wrote code for it.
- A pattern can be printed in many ways.
- We can print multiple hashes(#) in a single statement as a string.
- If you are allowed to print only hash in a statement at a time, then you have to write the same print statement multiple times.
- On writing a statement multiple times, it will give an output in a column.
- To convert a column output into a row format, we can use the end=" "parameter in every statement.
- To will restrict the cursor to move on a new line and hashes(#) will be printed in a single row.
#2
- Instead of writing the same code multiple times, we can use a for a loop.
- For a range(n) in a for loop, it will start from 0 and end at (n-1).
- We can use two loops, for printing two rows separated by a new line.
- For printing multiple rows, we have to write the same for loop code repeatedly.
- So, we can write the above for loop block inside another outer loop.
- In nested loops, an outer loop contains a variable that represents the number of rows and an inner loop contains a variable that represents the number of columns.
#3
- We can apply the concept to different patterns in a similar way.
e.g., for printing a right -triangle, we can restrict the inner loop till the value of a number of rows.
- For the reverse of the right triangle, we can restrict the inner loop till (n-i), where i is the number of rows.
Python Tutorial to learn Python programming with examples
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In this video we will see:
- Printing patterns
- Using loop
- For loop
Python for Beginners :- bit.ly/3JOLQhl
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14 июл 2018
