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BASIC TOOLS
Online Calculator
Standard & scientific modes — free, no sign-up
Tap the buttons or type on your keyboard. Switch to Scientific for trigonometry, logarithms, powers and roots.
What it can do
- Standard: add, subtract, multiply, divide, percentages, plus/minus and decimals.
- Scientific: sin, cos, tan and inverses, ln, log, xy, square & cube roots, π, e, factorials and memory (M+/M-/MR).
- Degrees / radians: the Deg button toggles angle mode for trig functions.
