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# How to generate a right arrow pattern using asterisks in Python

Vinisha Maheshwari

### Overview

In this shot, we’ll learn to generate a right arrow pattern using asterisks in Python. We’ll use simple for loops to generate a right arrow pattern using asterisks.

### Description

We’ll use nested for loops. An outer for loop will iterate through the rows, and an inner for loop will iterate through the columns.

### Code

Let’s look at the code snippet below:

# Number of Rows
n=9

# Upper Portion
u = (n - 1) // 2;

# Lower Portion
l = 3 * n // 2 - 1;

for i in range(n):
for j in range(n):

# Checking conditions to print right arrow
if (j - i == u or i + j == l or i == u):
print("*", end = "");

# Otherwise print space
else:
print(" ", end = "");
print()


Designing the right arrow asterisk pattern with python

### Explanation

• Line 2: We take the input for the number of rows.
• Line 5: We assign a value to the variable u, that is, the condition for drawing the upper portion of the right arrow pattern.
• Line 8: We assign a value to the variable l, that is, the condition for the lower portion of the right arrow pattern.
• Line 10: We have a for loop to iterate through the number of rows.
• Line 11: We have a for loop to iterate through the number of columns.
• Lines 14 to 20: We place the required conditions and print the desired pattern. Following are the rules:
• j - i == u ⇒ prints the upper portion
• i + j == l ⇒ prints the lower portion
• i == u ⇒ prints the middle portion

The end statement is used to stay on the same line. And the print() statement is used to move to the next line.

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Vinisha Maheshwari
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