Free integral calculator - solve indefinite, definite and multiple integrals with all the steps. Type in any integral to get the solution, steps and graph

Solve definite and indefinite integrals (antiderivatives) using this free online calculator. Step-by-step solution and graphs included!

Integration is a way of adding slices to find the whole. Integration can be used to find areas, volumes, central points and many useful things.

The fundamental theorem of calculus relates definite integration to differentiation and provides a method to compute the definite integral of a function when its antiderivative is known; …

Integration is finding the antiderivative of a function. It is the inverse process of differentiation. Learn about integration, its applications, and methods of integration using specific rules and …

Jul 23, 2025 · The integration can be done using multiple methods like integration by substitution, integration by parts, integration by partial fraction, etc. If f is the positive continuous function …

Free Integral Calculator helps you solve definite and indefinite integration problems. Also double, triple and improper integrals. Answers, graphs, alternate forms.

Learn about definite integrals, Riemann sums, and the fundamental theorem of calculus in this comprehensive guide to integral calculus.

Jan 2, 2026 · Integration, in mathematics, technique of finding a function g(x) the derivative of which, Dg(x), is equal to a given function f(x). This is indicated by the integral sign “∫,” as in …

Jun 6, 2018 · We will also take a quick look at an application of indefinite integrals. Substitution Rule for Indefinite Integrals – In this section we will start using one of the more common and …