What functions does the basic calculator support?

Our basic calculator supports essential math operations including addition, subtraction, multiplication, division, percentage, square root, and memory functions.

Basic Calculator

Simple and easy-to-use calculator for everyday math calculations, with memory functions and keyboard support.

Basic Calculator

Click buttons or use your keyboard for calculations

History

Key Features

Basic arithmetic operations (+, -, ×, ÷)

Scientific functions (√, %, 1/x, +/-)

Memory operations (MC, MR, M+, M-)

Calculation history tracking

Full keyboard support

Copy results to clipboard

Understanding Calculator Functions

Memory Functions: MC clears memory, MR recalls stored value, M+ adds to memory, M- subtracts from memory

Scientific Functions: √ calculates square root, % converts to percentage, 1/x finds reciprocal

Clear Operations: C clears all data, CE clears current entry only

Order of Operations: Follows standard mathematical precedence (PEMDAS/BODMAS)

Tips & Strategies

Keyboard Shortcuts: Use 0-9 for numbers, +/-/*/ for operations, Enter for equals, Esc to clear

Memory Usage: Store intermediate results in memory to avoid re-entering values in complex calculations

History Review: Check calculation history to verify results and catch errors

Copy Results: Use the Copy button to transfer results to other applications quickly

Error Recovery: Use CE to undo last input or C to start fresh if you make a mistake

How to Use the Basic Calculator

Step-by-Step Instructions

1Click number buttons or use keyboard (0-9) to enter numbers
2Select operation: +, -, ×, ÷ using buttons or keyboard (+, -, *, /)
3Enter the second number for your calculation
4Press = button or Enter key to get your result
5View calculation history in the history panel above the display

Pro Tips

💡Memory Functions: Use M+ to add to memory, M- to subtract, MR to recall, MC to clear
⌨️Keyboard Shortcuts: Escape = Clear All, Backspace = Clear Entry, Enter = Equals
🔧Scientific Functions: Use √ for square root, % for percentage, 1/x for reciprocal
📋Copy Results: Click "Copy Result" to copy the answer to your clipboard
📝Complex Calculations: Chain multiple operations - the calculator follows order of operations

Step-by-Step Instructions

Enter Numbers

Click number buttons (0-9) to input your first number. The display shows your current input.

Choose Operation

Click an operation button (+, -, ×, ÷) to select what calculation you want to perform.

Add Second Number

Enter your second number using the number buttons. You can input decimal numbers using the (.) button.

Calculate Result

Press the equals (=) button to perform the calculation and see your result on the display.

Clear or Continue

Use C to clear all, CE to clear current entry, or continue with more operations using your result.

Use Memory Functions

Store frequently used numbers with MS (Memory Store), recall with MR (Memory Recall), or clear with MC.

Pro Tips

⌨️

Keyboard Shortcuts: Use your keyboard for faster input. Numbers, +, -, *, /, and Enter (=) all work as expected.

🔢

Chain Calculations: After getting a result, you can immediately start a new operation without clearing the display.

💾

Memory Functions: Use memory to store intermediate results in complex calculations. Perfect for multi-step math problems.

🎯

Precision Matters: For financial calculations, be aware of rounding. The calculator shows up to 10 decimal places for accuracy.

🔄

Error Recovery: If you make a mistake, use CE to clear just the current entry, or C to start completely fresh.

Frequently Asked Questions

How do I use the online calculator?

Simply click the number and operation buttons to perform calculations. You can also use your keyboard for faster input. The display shows your current input and the history area shows recent calculations.

Does the calculator support scientific functions?

Yes, our calculator includes scientific functions like square root (√), percentage (%), reciprocal (1/x), and sign change (+/-). More advanced scientific functions may be added in future updates.

Can I use keyboard input with the calculator?

Absolutely! You can use numbers (0-9), operators (+, -, *, /), decimal point (.), Enter for equals, Escape to clear all, and Backspace to clear the current entry.

How do the memory functions work?

MC clears memory, MR recalls the stored value, M+ adds the current display to memory, and M- subtracts the current display from memory. The memory indicator shows when a value is stored.

What's the difference between C and CE?

C (Clear) resets the entire calculator including memory and history, while CE (Clear Entry) only clears the current input, allowing you to continue with your calculation.

How accurate are the calculations?

The calculator uses JavaScript's built-in math functions and provides standard floating-point precision. Results are formatted to avoid excessive decimal places while maintaining accuracy.