Add: Smart Calculator project

my-awesome-project/README.md

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+\# Smart Calculator
+
+
+
+\## Description
+
+A command-line calculator that performs basic arithmetic operations.
+
+
+
+\## Features
+
+\- Add, Subtract, Multiply, Divide
+
+\- Input validation
+
+\- Prevents division by zero
+
+
+
+\## Usage
+
+Run:
+
+python app.py
+
+
+
+\## Technologies
+
+\- Python
+

my-awesome-project/app.py

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+def calculator():
+    print("=== Smart Calculator ===")
+
+    while True:
+        print("\nChoose operation:")
+        print("1. Add")
+        print("2. Subtract")
+        print("3. Multiply")
+        print("4. Divide")
+        print("5. Exit")
+
+        choice = input("Enter choice (1-5): ")
+
+        if choice == '5':
+            print("Exiting calculator...")
+            break
+
+        if choice not in ['1','2','3','4']:
+            print("Invalid choice, try again!")
+            continue
+
+        try:
+            a = float(input("Enter first number: "))
+            b = float(input("Enter second number: "))
+        except:
+            print("Invalid input! Enter numbers only.")
+            continue
+
+        if choice == '1':
+            print("Result:", a + b)
+        elif choice == '2':
+            print("Result:", a - b)
+        elif choice == '3':
+            print("Result:", a * b)
+        elif choice == '4':
+            if b == 0:
+                print("Error: Division by zero!")
+            else:
+                print("Result:", a / b)
+
+calculator()