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1. For **Windows** or **Linux** - Press **Ctrl+D**

2. For **MacOS** - Press **Cmd+D**

3. For **iPhone (Safari)** - **Touch and hold**, then tap **Add Bookmark**

4. For **Google Chrome** - Press **3 dots** on top right, then press the **star sign**

1
### Step 1

Enter your integral problem in the input field.

2
### Step 2

Press Enter on the keyboard or on the arrow to the right of the input field.

3
### Step 3

In the pop-up window, select “Find the Integral”. You can also use the search.

The integral is one of the most important concepts of mathematical analysis that arises when solving problems of finding the area under a curve, the distance traveled with uneven motion, the mass of an inhomogeneous body, and the like, as well as the problem of restoring a function from its derivative (indefinite integral).

The simplified integral can be represented as an analog of the sum for an infinite number of infinitesimal terms. Depending on the space on which the integrand is given, the integral can be - double, triple, curved, surface, and so on.

Scientists try to express all physical phenomena in the form of a mathematical formula. As soon as we have a formula, then you can already count anything with it. And the integral is one of the main tools for working with functions.

For example, if we have a circle formula, we can use the integral to calculate its area. If we have the formula of a ball, then we can calculate its volume. Through integration, they find energy, work, pressure, mass, electric charge and many other quantities.