1. What is Integer Arithmetic?

Integer arithmetic involves mathematical operations performed on whole numbers (integers). This calculator specifically handles addition and subtraction of integers, which are fundamental operations in mathematics.

2. How Does the Calculator Work?

The calculator performs basic arithmetic operations:

Where:

• \( a \) — First integer
• \( b \) — Second integer
• \( + \) — Addition operation
• \( - \) — Subtraction operation

Explanation: The calculator takes two integers and performs either addition or subtraction based on the selected operation.

3. Importance of Integer Operations

Details: Addition and subtraction are fundamental mathematical operations used in everyday life, from basic counting to complex financial calculations and programming.

4. Using the Calculator

Tips: Enter two integer values, select the desired operation (addition or subtraction), and click calculate. The calculator will display the result of the operation.

5. Frequently Asked Questions (FAQ)

Q1: What are integers?
A: Integers are whole numbers that can be positive, negative, or zero, without any fractional or decimal components.

Q2: Can this calculator handle decimal numbers?
A: No, this calculator is specifically designed for integer operations. Decimal numbers will be truncated to integers.

Q3: What is the range of numbers this calculator can handle?
A: The calculator can handle integers within the range supported by PHP, typically from -2,147,483,648 to 2,147,483,647.

Q4: How does subtraction work with negative numbers?
A: Subtracting a negative number is equivalent to adding its positive counterpart (a - (-b) = a + b).

Q5: Can I use this calculator for educational purposes?
A: Yes, this calculator is excellent for learning and practicing basic integer arithmetic operations.