🧮 Calculator
Free online calculator for simple and scientific operations.
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🧮 What is Online Calculator?
An online calculator is a digital tool that allows you to perform mathematical operations via your web browser. With our free calculator tool, you can easily perform everything from basic math operations to complex calculations.
Supported Operations
➕ Basic Operations
- Addition (+)
- Subtraction (-)
- Multiplication (×)
- Division (÷)
🔢 Advanced
- Parentheses ( )
- Decimal numbers
- Percentage (%)
- Complex formulas
User Manual
Calculator Usage:
- Click numbers and operation symbols to enter them
- Use parentheses for complex operations
- Press "=" button to see the result
- Clear with "C", delete the last character with "⌫"
Manual Input:
- You can type the formula directly
- Example: (5 + 3) * 2 - 1
- Use dot (.) for decimal numbers
Use Cases
🎓 Education
- Math homework
- Exam calculations
- Studying
- Problem solving
💼 Business
- Financial calculations
- Budget planning
- Cost analysis
- Preparing reports
🏠 Daily Life
- Shopping calculations
- Bill check
- Recipes
- Tip calculation
Order of Operations
Math Rules:
- Parentheses: Operations inside ( ) are done first
- Multiplication/Division: × and ÷ operations
- Addition/Subtraction: + and - operations
- Left to Right: Operations with same precedence are done left to right
Example: 2 + 3 × 4 = 2 + 12 = 14 (3×4 is calculated first)
Advantages
- ✅ Fast and easy to use
- ✅ Complex formula support
- ✅ Mobile compatible design
- ✅ Keyboard support
- ✅ Free access
💡 Tip: Don't forget to use parentheses for complex calculations. This ensures you control the order of operations.