🧮 Free Online Calculator
Basic and scientific calculator with keyboard support
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⌨️ Keyboard Shortcuts
- Numbers (0-9): Enter digits
- Operators (+, -, *, /): Perform operations
- Enter: Calculate result
- Escape: Clear all
- Backspace: Delete last character
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📐 Scientific Functions
- Trigonometry: sin, cos, tan (toggle DEG/RAD)
- Logarithms: log (base 10), ln (natural)
- Powers: x² (square), xʸ (power), √ (square root)
- Constants: π (3.14159...), e (2.71828...)
- Advanced: ± (negate), % (percent), 1/x (reciprocal)
📜 Calculation History
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