Chapter 3: Simple Calculator: Basic Arithmetic & Input Handling

Thu, 04 Dec 2025 00:00:00 +0000

Chapter 3: Simple Calculator: Basic Arithmetic & Input Handling

Welcome to Chapter 3 of our journey! In this chapter, we will embark on building our very first interactive application: a Simple Calculator. This project, while seemingly basic, is fundamental for grasping core programming concepts such as user input handling, conditional logic, method creation, and basic arithmetic operations. It lays a crucial foundation for more complex applications by demonstrating how to interact with users and process data.

Chapter 16: Guided Project: Simple Command-Line Calculator

Mon, 03 Nov 2025 01:00:00 +0000

Chapter 16: Guided Project: Simple Command-Line Calculator

Welcome to your first guided project! The best way to solidify your understanding of C programming is by building something practical. In this project, we will create a simple command-line calculator. This will allow you to apply many of the concepts we’ve covered so far:

Functions: To encapsulate arithmetic operations.
Control Flow: For handling different operations and error conditions.
Data Types and Operators: For performing calculations.
Command-Line Arguments (argc, argv): For accepting user input.
String to Number Conversion: Using atoi or strtol.

The goal is to create a program that can be run from the terminal like this:

Calculator on AI VOID

Chapter 3: Simple Calculator: Basic Arithmetic & Input Handling