Calculator
A full-featured calculator with basic and scientific modes. Includes trigonometry, logarithms, powers, factorials, keyboard support, and a scrollable history of every calculation.
Frequently Asked Questions
What operations are supported?
Basic: add, subtract, multiply, divide, parentheses, negation. Scientific: sin, cos, tan (and inverses), natural log, log base 10, square root, cube root, powers, factorial, absolute value, ceiling, floor, rounding, modulo, and constants pi and e.
Does the calculator support keyboard input?
Yes. Use number keys, +, -, *, /, parentheses, Enter or = to evaluate, Escape or C to clear, and Backspace to delete. The ^ key enters exponentiation.
What is the history feature?
Every calculation is saved in a scrollable history panel below the buttons. Click any history entry to load its result back into the display for further calculations.
What is the difference between DEG and RAD mode?
DEG mode interprets trig function inputs as degrees (360 in a circle). RAD mode uses radians (2pi in a circle). Toggle between them in scientific mode.
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