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Simple Calculator Experiment

Learn Python basic operators and implement a calculator for addition, subtraction, multiplication, and division.

Python Code:

def calculate(num1: float, num2: float, operation: str) -> float:
    """
    Simple calculator function
    Supports four operations: addition, subtraction, multiplication, and division
    """
    if operation == '+':
        return num1 + num2
    elif operation == '-':
        return num1 - num2
    elif operation == '*':
        return num1 * num2
    elif operation == '/':
        if num2 == 0:
            raise ValueError("Cannot divide by zero")
        return num1 / num2
    else:
        raise ValueError(f"Unsupported operation: {operation}")

# Usage Example
result = calculate(10, 5, '+')
print(f"Result: {result}")  # Output: Result: 15.0

Try it out:

First Number

Operator

Second Number

💡 Learning Points:

Conditional Statements: Use if/elif/else for conditional logic
Operators: + - * / basic arithmetic
Exception Handling: Use raise ValueError to handle error cases
Type Annotation: float type for floating-point operations