1. What is the Difference Between Two Numbers?

The difference between two numbers is the result of subtracting one number from another. It represents the numerical distance between two values on the number line.

2. How Does the Calculator Work?

The calculator uses the simple subtraction formula:

Where:

• \( Number1 \) — First input value (dimensionless)
• \( Number2 \) — Second input value (dimensionless)

Explanation: The calculator simply subtracts the second number from the first number to find their difference.

3. Importance of Difference Calculation

Details: Calculating differences between values is fundamental in mathematics, physics, engineering, finance, and many other fields. It's used for comparing values, measuring changes, and solving various problems.

4. Using the Calculator

Tips: Enter any two numbers in the input fields. The calculator will compute and display their difference. Both positive and negative numbers are supported.

5. Frequently Asked Questions (FAQ)

Q1: What if I enter the numbers in reverse order?
A: The result will be the negative of what you'd get with the original order (e.g., 5-3=2 but 3-5=-2).

Q2: How many decimal places does this support?
A: The calculator supports up to 4 decimal places for precise calculations.

Q3: Can I calculate the difference between very large numbers?
A: Yes, the calculator can handle very large numbers within the limits of PHP's floating-point arithmetic.

Q4: What's the difference between difference and distance?
A: Difference is signed (can be negative), while distance is always positive (absolute value of the difference).

Q5: Can this be used for percentage difference?
A: No, this calculates absolute difference. Percentage difference would require a different formula.