Scientific Calculator
Full scientific calculator with trig, log, factorial, and more
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About Scientific Calculator
Perform advanced calculations with trig functions, logarithms, powers, factorials, and constants. Full keyboard support — works like a real calculator.
- Full trig functions: sin, cos, tan and inverses
- Logarithms (log base 10 and natural log ln)
- Powers, factorials, square roots, and pi/e constants
- Full keyboard support with standard key bindings
- Displays calculation history for reference
Everything runs in your browser — your data never leaves your device.
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How to Use Scientific Calculator
- Click buttons or use your keyboard to enter expressions
- Use function buttons (sin, cos, tan, log, ln, sqrt) followed by a value in parentheses
- Press = or Enter to evaluate the expression
Frequently Asked Questions
Are trig functions in degrees or radians?
Trigonometric functions use degrees. For example, sin(90) = 1.
How do I enter exponents?
Use the x^y button or the ^ key. For example, 2^10 = 1024.
Does it support keyboard input?
Yes. Use number keys, operators (+, -, *, /), ^ for power, parentheses, Enter to evaluate, Backspace to delete, and Escape to clear.
