Scientific Calculator
Trig, logarithms, roots, powers and factorials. Type with your keyboard or tap the keys — the answer updates as you go.
How it works
Expressions follow standard order of operations: brackets first, then functions and exponents, then multiplication and division, then addition and subtraction. Implicit multiplication works, so 2π and 3(4+1) mean what you would expect. A missing closing bracket at the end is closed for you.
Supported functions
| Input | Meaning | Example |
|---|---|---|
sin cos tan | Trig functions (follow DEG/RAD) | sin(30) = 0.5 |
asin acos atan | Inverse trig (sin⁻¹, cos⁻¹, tan⁻¹) | atan(1) = 45 |
sinh cosh tanh | Hyperbolic functions | tanh(0) = 0 |
log ln log2 | Base 10, natural and base 2 logarithms | log(1000) = 3 |
sqrt cbrt abs exp | Square root, cube root, absolute value, eˣ | cbrt(27) = 3 |
^ ! % | Power, factorial, percent | 2^10 = 1024 |
pi e Ans | Constants and the previous answer | 2*Ans |
Worked example
To find the length of the hypotenuse of a right triangle with sides 3 and 4, enter sqrt(3^2 + 4^2). That is √(9 + 16) = √25 = 5.
Keyboard shortcuts
Enter saves the result to history and into Ans. Esc clears the screen. Type * and / for multiply and divide.
Frequently asked
Should I use degrees or radians?
Use degrees (DEG) for everyday geometry and most school problems, and radians (RAD) for calculus, physics and anything written in terms of π. The mode only affects sin, cos, tan and their inverses.
What is the difference between log and ln?
log is the base-10 logarithm and ln is the natural logarithm (base e ≈ 2.71828). For example, log(1000) = 3 and ln(e) = 1.
Why does -2^2 give -4?
Exponents bind tighter than a leading minus sign, so -2^2 means -(2^2) = -4. Write (-2)^2 if you want 4.
How large a factorial can it handle?
Whole numbers from 0 up to 170. 171! is larger than the biggest number a browser can represent, so the calculator reports an error instead of showing infinity.