Scientific Calculator
Trigonometric, logarithmic, exponential, root, and factorial functions — pick a function and enter your value(s).
What each function does
- Sine, cosine, tangent — ratios from a right triangle's angle, fundamental to trigonometry
- Natural log (ln) — the logarithm base e (≈2.71828); log₁₀ — the logarithm base 10
- Square root, square, cube — common powers and their inverse
- Power (xʸ) — raises a base to any exponent, including negative or fractional
- Factorial (x!) — the product of every whole number from 1 up to x, used in combinatorics and probability
Worked examples
sin(30°) = 0.5 — one of the standard angle values used throughout trigonometry.
log₁₀(1000) = 3, since 10³ = 1000.
5! = 5 × 4 × 3 × 2 × 1 = 120.
Frequently asked questions
Why does my trig answer look different from a textbook?
Check the angle unit. sin(30°) and sin(30 radians) give very different results — most everyday trigonometry problems use degrees, but math and physics coursework often uses radians.
Why can't I take the square root or log of a negative number?
Both are undefined for negative numbers within the real numbers — the result would only exist in complex numbers, which this calculator doesn't compute.
Is there a limit to factorials?
Numbers above 170! exceed what standard double-precision floating-point numbers can represent accurately, so this calculator caps factorial input at 170.