1. Hello! Python

Print 'Hello, World!' to console.

print("Hello, World!")
print("I'm Sanzu")

Run the program:

python hello.py

Output:

Hello, World!
I'm Sanzu

---

2. Circle

A simple Python program that calculates the area and circumference of a circle.

• Area: π × r²
• Circumference: 2 × π × r

area = 3.14 * radius * radius
circumference = 2 * 3.14 * radius

Run the program:

python areaCircle.py

Enter the radius when prompted:

Enter radius: 5
Area of Circle: 78.5
Circumference of Circle: 31.4

---

3. Pyramid

Prints a star pyramid pattern based on user input.

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

How it works:

1. Loop through each row from 1 to rows
2. Calculate spaces: rows - i (decreases each row)
3. Calculate stars: 2 * i - 1 (odd numbers: 1, 3, 5, 7...)
4. Print spaces and stars using string multiplication

Run the program:

python pyramid.py

Example trace for 5 rows:

Row 1: spaces=4, stars=1  →     *
Row 2: spaces=3, stars=3  →    ***
Row 3: spaces=2, stars=5  →   *****
Row 4: spaces=1, stars=7  →  *******
Row 5: spaces=0, stars=9  → *********

---

4. Triangle

A simple Python program that calculates the area of a triangle based on user input.

Run the program:

python areaTriangle.py

Enter the base and height when prompted:

Enter height: 10
Enter base: 5
-------------------------
Area of Triangle: 25.0

Requirements:

• Python 3.x

Formula: The program uses the standard triangle area formula.

Area = ½ × base × height

---

5. Power Calculator

A simple Python program that calculates the power of a number. This program takes two inputs from the user (base and exponent) and calculates the result of base raised to the power of exponent using Python's exponentiation operator (**).

Enter the base and exponent when prompted:

Enter the base number: 2
Enter the exponent: 8
-------------------------

2^8 = 256

Requirements:

• Python 3.x

Run the program:

python exponentPower.py

How It Works:

1. Prompts user for a base number
2. Prompts user for an exponent
3. Calculates base^exponent
4. Displays the result in a formatted output

---

Author: heysanzu