13 tools

Math & Calculators tools

Math tools: statistics, matrices, geometry, and more.

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13 results

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Percent of a number, percent change, and more.

Add, subtract, multiply, and divide fractions with auto-simplify.

Simplify ratios, solve a:b = c:x, and split totals.

Mean, median, and mode from a list of numbers.

Population/sample stdev, variance, and SEM.

Test primality and factor integers with BigInt.

GCD and LCM for two or more integers.

nPr / nCr with and without repetition (BigInt).

Solve ax²+bx+c=0 with discriminant and steps.

Roman ↔ Arabic numerals (1–3999).

Area, perimeter, and volume for common shapes.

Dot product, cross product, norm, and angle for 2D/3D vectors.

Determinant, inverse, transpose, multiply, and add (≤8×8).