Derivative Calculator

Estimate derivatives at a point and draw tangent lines. Fast, private, and built to make every number easier.

Input values

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How does this calculator work?

Estimate derivatives at a point and draw tangent lines. Edit the inputs and see the computed results. All calculations take place inside your browser, without submitting values to a server.

f′(x) ≈ (f(x+h) − f(x−h))/(2h). Numerical estimate, not symbolic differentiation.

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