1. What is Decimal Arithmetic?

Decimal arithmetic involves performing mathematical operations (addition, subtraction, multiplication, and division) with numbers that have fractional parts. This calculator handles precise decimal calculations with up to 4 decimal places.

2. How Does the Calculator Work?

The calculator performs basic arithmetic operations:

All calculations are performed with decimal precision and rounded to 4 decimal places.

3. Importance of Decimal Calculations

Details: Precise decimal arithmetic is essential in fields like finance, engineering, science, and statistics where fractional values are common and accuracy is critical.

4. Using the Calculator

Tips: Enter two decimal numbers, select an operation, and click Calculate. The calculator handles positive and negative numbers with up to 4 decimal places.

5. Frequently Asked Questions (FAQ)

Q1: How many decimal places does this calculator support?
A: The calculator accepts inputs with up to 4 decimal places and provides results rounded to 4 decimal places.

Q2: Can I use negative numbers?
A: Yes, the calculator handles both positive and negative decimal numbers.

Q3: What happens if I divide by zero?
A: The calculator will display an error message "Cannot divide by zero".

Q4: Is there a limit to how large the numbers can be?
A: The calculator uses standard PHP floating-point numbers, which typically handle values up to about 1.8e308 with 14-15 decimal digits of precision.

Q5: Why are some results not perfectly accurate?
A: Due to how computers represent floating-point numbers, some decimal fractions can't be represented exactly, leading to very small rounding errors.