เครื่องคิดเลขคณิตศาสตร์และวิทยาศาสตร์

Online scientific calculator with sin, cos, tan, log, ln, sqrt, and power. Evaluate complex expressions instantly.

Calculate square root of any number. Get exact value and squared verification. Free and instant.

Calculate x to the power of y. Handle large exponents. Get result in standard and exponential notation.

Calculate factorial n! for any non-negative integer. Essential for permutations and combinations.

Calculate combinations C(n,r). How many ways to choose r from n. Essential for probability and statistics.

Calculate permutations P(n,r). Arrangements of r from n. Order matters. For probability calculations.