VALUES, DOMAINS AND THE STEPS BETWEEN.

Meet the function.
Understand its value.

Evaluate polynomials, logarithms, trigonometry and more. Thirty focused function calculators with explicit domains and angle units.

30 focused calculatorsNo sign-upDefinitions, clearly explained

MATHEMATICAL FUNCTIONS

f(x), explained.

30 FOCUSED TOOLSONE CLEAR RESULT ↗

English interface · Local calculations · No sign-up.

POLYNOMIALSDisplay currency

Linear function

Method & assumptions

YOUR MATHEMATICAL FUNCTIONS TOOLKIT

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30 calculators, together on one page.

Interactive calculators require JavaScript. Available tools:

Linear function — Evaluate f(x) = ax + b.

Quadratic function — Evaluate f(x) = ax² + bx + c.

Cubic function — Evaluate f(x) = ax³ + bx² + cx + d.

Polynomial evaluator — Evaluate a real polynomial of degree up to 20.

Linear-over-linear function — Evaluate f(x) = (ax+b)/(cx+d).

Reciprocal function — Evaluate f(x) = 1/x.

Absolute value function — Evaluate the distance of x from zero.

Power function — Evaluate f(x) = a × x^p over real values.

Square-root function — Evaluate the principal real square root.

Cube-root function — Evaluate the real cube root, including negative inputs.

Natural exponential — Evaluate f(x) = e^x.

General exponential — Evaluate f(x) = a × b^x with a positive base.

Natural logarithm — Evaluate ln(x), the logarithm to base e.

Base-10 logarithm — Evaluate log₁₀(x).

Logarithm with any base — Evaluate log base b of a positive value.

Sine function — Evaluate sin(x) in degrees or radians.

Cosine function — Evaluate cos(x) in degrees or radians.

Tangent function — Evaluate tan(x), avoiding points near its poles.

Inverse sine — Find the principal arcsine of a value from −1 to 1.

Inverse cosine — Find the principal arccosine of a value from −1 to 1.

Inverse tangent — Find the principal arctangent of a real value.

Hyperbolic sine — Evaluate sinh(x) for a real argument.

Hyperbolic cosine — Evaluate cosh(x) for a real argument.

Hyperbolic tangent — Evaluate tanh(x).

Logistic sigmoid — Evaluate σ(x)=1/(1+e^(−x)).

Scaled logistic function — Evaluate L/(1+e^(−k(x−x₀))).

Polynomial derivative at x — Evaluate an exact polynomial derivative at a point.

Definite polynomial integral — Integrate a real polynomial between two bounds.

Quadratic vertex — Find the turning point of ax²+bx+c.

Inverse linear function — Evaluate the inverse of f(x)=ax+b at a chosen y.

01 / FOCUSED

Thirty distinct tools.

Each calculator has its own inputs, definition and worked example.

02 / TRANSPARENT

Know the method.

See the formula and domain restrictions next to the result. Precision and assumptions are explained.

03 / LOCAL

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