Generate solid equilateral triangle using alphabets in Python

In this shot, we will generate a solid equilateral triangle using alphabets in Python.

We can print a plethora of patterns using Python. The only prerequisite to do so is a good understanding of how loops work in Python. Here, we will be using simple for loops to generate a solid equilateral triangle using alphabets.

Description

A triangle is equilateral if it has all three sides of the same length. To create an equilateral triangle with alphabets using Python programming, we will be using two for loops:

An outer loop to handle the number of rows.
An inner loop to handle the number of columns.

Code

Let’s take a look at the code.

# Number of Rows
n = 8
# Number of spaces
k = n - 1
    
# Outer loop to handle number of rows
for i in range(0,n):
        
    #Inner loop to handle number of spaces
    for j in range(0,k):
        print(end=" ")
            
    # Decrementing k after each loop
    k -= 1
        
    # Inner loop to handle number of columns
    # Values change acc to outer loop
    for j in range (0, i+1):
        
        ch = chr(65+i)
            
        # Printing Stars
        print(ch, end=" ")
            
    # Ending Line after each row
    print("\r")

Explanation

In line 2, we take the input for the number of rows.
In line 5, we define k, the number of spaces.
In line 8, we create a loop to handle the number of rows.
In lines 11 and 12, we use inner loops to create spaces.
In line 15, the value of k is decremented after every iteration to create the slope.
In line 19, the loop is created to handle the number of columns.
In line 21, we define ch, which is used to create alphabets from numbers by using the iterative value of i and the concept of ASCII conversion. The starting value 65 has been used, as the ASCII value of A (start of the triangle) is 65.
In line 24, we print ch to generate an equilateral triangle using characters.
In line 27, we use \r to print the stars from the next row.

License: Creative Commons-Attribution-ShareAlike 4.0 (CC-BY-SA 4.0)

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