Calculators

Math Calculators That Show Every Step

Single-purpose tools for when you know exactly what you need to compute — and want to see how it was done.

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Derivative calculatorDifferentiate any function and see which rule applies at each step, whether power, product, quotient, or chain, with the working written in full.Integral calculatorEvaluate definite and indefinite integrals with the technique chosen for you, every substitution shown, and the limits changed where needed.Limit calculatorEvaluate limits including indeterminate forms, with the algebraic manipulation or L'Hopital step written out and justified line by line.Quadratic formulaSolve any quadratic and compare factoring, completing the square, and the formula on the same equation, with the discriminant explained.Equation solverSolve linear, quadratic, rational, and radical equations with each operation applied to both sides shown, including checks for extraneous roots.Factoring calculatorFactor polynomials completely, with the pattern named first, whether GCF, difference of squares, grouping, or trinomial, then applied in full.Systems solverSolve systems by substitution, elimination, or graphing, see all three worked on the same system, and learn which is fastest for yours.Matrix calculatorDeterminants, inverses, multiplication, and row reduction with every elementary row operation listed, plus a check for when no inverse exists.Inequality calculatorSolve and graph inequalities, including compound and absolute value cases, with the sign-flip rule explained where it actually applies.Slope calculatorFind slope, midpoint, and distance from two points, then build the line in point-slope, slope-intercept, and standard form from the same data.Domain and rangeFind the domain and range of a function with each restriction identified in turn: denominators, even roots, logarithms, and the graph itself.Standard deviationCompute sample and population standard deviation with a full table of deviations and squared deviations, and guidance on which divisor to use.

Calculator or solver?

A calculator is the right choice when you already know the operation and just need it carried out correctly — differentiate this, invert that, factor this polynomial. Each one explains the rule it applied at every step, so it doubles as a check on your own method rather than a black box that hands back a number.

If you are looking at a problem and are not yet sure what it is asking for, a subject solver is the better starting point, because it will identify the problem type before solving it. And if the underlying method is what is missing rather than the arithmetic, the concept guides derive each one from first principles instead of just stating it.

A note on trusting output: these tools are reliable on well-formed input and much less so on ambiguous notation or problems that depend on a diagram. Always sanity-check a result — substituting your answer back into the original equation catches most errors in seconds, and five other verification tricks catch nearly all the rest.

Also useful

Subject solversBroader help across a whole subject.Concept guidesUnderstand the method, not just the result.Open the solverType or photograph any problem.Gauth PlusUnlimited solutions and follow-ups.

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