เครื่องคิดเลขคณิตศาสตร์และวิทยาศาสตร์

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

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

Calculate logarithm with any base. Log base 10, natural log, or custom base. Get ln(x) as well.

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.