Arithmetic Sequence
Find the nth term, common difference and sum of an arithmetic progression.
Open toolCombination Calculator
Compute combinations (nCr) with or without repetition, step by step.
Open toolDeterminant Calculator
Find the determinant of 2×2, 3×3 and larger matrices with cofactor expansion.
Open toolFraction Calculator
Add, subtract, multiply and divide fractions with simplified results.
Open toolGCD & LCM Calculator
Find the greatest common divisor and least common multiple of any set of numbers.
Open toolGeometric Sequence
Find the nth term, common ratio and sum of a geometric progression.
Open toolIntegral Calculator
Compute definite and indefinite integrals with step-by-step working.
Open toolLimit Calculator
Evaluate limits as x approaches a value or infinity, one-sided and two-sided.
Open toolLinear Equation Solver
Solve one-variable and simultaneous linear equations with clear steps.
Open toolLogarithm Calculator
Evaluate logs to any base, including natural and common logarithms.
Open toolMatrix Calculator
Add, subtract, multiply, transpose and invert matrices of any size.
Open toolMean, Median & Mode
Calculate central tendency and spread for any dataset instantly.
Open toolPercentage Calculator
Find percentages, percentage change and percentage difference with ease.
Open toolPermutation Calculator
Compute permutations (nPr) with or without repetition, step by step.
Open toolPrime Factorisation
Break any number into its prime factors with a factor tree.
Open toolPrime Number Checker
Instantly check if a number is prime and find nearby primes.
Open toolProbability Calculator
Work out single and compound probabilities for events and outcomes.
Open toolQuadratic Equation Solver
Solve ax² + bx + c = 0 with real and complex roots, step by step.
Open toolRatio Calculator
Simplify ratios, scale them up or down, and find missing terms.
Open toolScientific Calculator
A full scientific calculator with trig, logs, powers and roots.
Open toolSequence Calculator
Analyse any sequence — find patterns, next terms and general formulas.
Open toolSlope Calculator
Find the slope, angle and equation of a line through two points.
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