Python program to print a half pyramid in star

Python program to print half pyramid in star:

This program will show you how to print a pyramid in star * using python. We choose *, but we can always go for any other character that we want. We will learn different types of Pyramid patterns to print in this post.

Pattern 1: Half pyramid pattern:

Let’s create one half pyramid first :

def print_pyramid(size):
    for row in range(0, size):
        for col in range(0, row+1):
            print("*", end=" ")
        print("")


size = int(input("Enter the size of the Pyramid : "))
print_pyramid(size)

Here, we are taking the size of the pyramid as input and printing the pyramid. For example:

Enter the size of the Pyramid : 6
* 
* * 
* * * 
* * * * 
* * * * * 
* * * * * *

print_pyramid method is responsible for printing the pyramid.
It takes the size of the pyramid as parameter and prints it out.
We have two for loops in this method. The outer loop is used to indicate the rows for the pyramid.
The inner loop is to print the * i.e. the columns of the triangle.
The outer loop runs from 0 to size, i.e. if we are passing 5 as size, it will run for 5 times. The inner loop runs for row+1 times where row is the current outer loop value.

Patern 2: Inverted right angled triangle:

We can also print one inverted right angled triangle by taking the size as input. The logic is difficult than the previous one. It will look as like:

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

Here, we need to print blank spaces before printing the star. For this pyramid:

The height is 5
For the first line, we are printing 4 blank spaces and one *.
For the second line, we are printing 3 blank spaces and two *.
i.e. for nth line, we are printing size - n number of blank spaces and n number of *.

It looks as like below if we write in code:

def print_pyramid(size):
    for row in range(0, size):
        for i in range(0, size - row - 1):
            print(' ', end='')
        for i in range(0, row + 1):
            print('*', end='')
        print('')


size = int(input('Enter the size of the Pyramid : '))
print_pyramid(size)

If you execute this program, it will print outputs as like below:

Enter the size of the Pyramid : 10
         *
        **
       ***
      ****
     *****
    ******
   *******
  ********
 *********
**********

You can give any size to print a half pyramid.

CodeVsColor

Python program to print a half pyramid in star

Python program to print half pyramid in star:

Pattern 1: Half pyramid pattern:

Patern 2: Inverted right angled triangle:

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