Type a function of x to get its exact derivative, simplified, the value at any point, the tangent line and the definite integral between two limits.
loading toolHow to use the derivative & integral calculator
- Type f(x), for example x^3 + sin(x).
- Choose the first, second or third derivative.
- Enter a point for the slope and tangent, and limits for the integral.
Questions
How is the integral worked out?
Numerically, with adaptive Simpson’s rule, accurate to about 10 digits for smooth functions.
Is my data private?
Yes. Everything happens inside your own browser: nothing you type or choose is uploaded to us or anyone else.
Is it free?
Completely free, with no sign-up, no watermark and no limit on how many times you use it. Light ads keep the site running.





























