Matematik Araçları

Calculate combinations nCr and permutations nPr with factorial formulas, step-by-step work, and support for large results.

Perform basic and scientific calculations with trigonometry, logarithms, powers, and degree or radian mode.

Free unit conversion practice tool — convert between km and mi, °C and °F, and more. Check answers with tolerance and see a worked step.

Calculate the determinant of a square matrix up to 6×6 with step-by-step cofactor work.

Free mental math drill practice tool — timed addition, subtraction, and multiplication with live score and streak. Press Enter for the next problem.

Compute symbolic indefinite integrals with step-by-step rules. Supports polynomials, trig, exp, and 1/x.

Find the greatest common divisor (GCD) and LCM of two or more positive integers with Euclidean algorithm steps and prime-factor method.

Compute sin, cos, tan, csc, sec, cot, and inverse trig functions in degrees or radians with exact values and step-by-step work.

Compute mean, median, mode, standard deviation, variance, quartiles, range, and more from any dataset with step-by-step formulas.

Solve ax² + bx + c = 0 with the quadratic formula. Get roots, discriminant, vertex, and step-by-step work.

Count significant figures, round to N sig figs, and add, subtract, multiply, or divide with correct precision rules. Enter decimals, trailing zeros, or scientific notation. Free, instant, browser-based.

Combine and propagate measurement uncertainty with root-sum-of-squares (RSS). Add, subtract, multiply, or divide values with ± uncertainties, convert percent uncertainty, and compute expanded uncertainty U = k·u. Free, instant, browser-based.