Printing Triangle Pattern In Python

Lecture 46:- Printing Triangle Pattern In Python

To print a triangle pattern in Python, you can use nested loops to control the number of stars (or any other character) in each row. Here's an example of how to create different triangle patterns using nested loops:

1. Right-angled Triangle (with stars):

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def right_angle_triangle(size):    for i in range(1, size + 1):        print("* " * i) # Example usage: size_of_triangle = 5 right_angle_triangle(size_of_triangle)

Output:

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

1. Inverted Right-angled Triangle (with stars):

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def inverted_right_angle_triangle(size):    for i in range(size, 0, -1):        print("* " * i) # Example usage: size_of_triangle = 5 inverted_right_angle_triangle(size_of_triangle)

Output:

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

1. Equilateral Triangle (with stars):

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def equilateral_triangle(size):    for i in range(1, size + 1):        print(" " * (size - i) + "* " * i) # Example usage: size_of_triangle = 5 equilateral_triangle(size_of_triangle)

Output:

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    *   * *  * * * * * * * * * * * *

In each example, the nested loops are used to control the number of stars in each row based on the current row index (i). The range() function is used to create the appropriate range for each type of triangle pattern. The print() statement is used to print stars (or spaces) in the required format to create the triangle pattern.

You can modify the size_of_triangle variable to create triangle patterns of different sizes or replace the "*" character with any other character or string to create patterns using different symbols.