## Introduction to Midpoint Rule Calculator

The midpoint rule calculator is a numerical tool that helps to **find the approximate value** of the midpoint in a graph with the help of the integration method.

The midpoint rule integral calculator is used to evaluate the central value of the area under the curve over a bounded region in a fraction of a second. It also computes the sum of rectangles formed by these midpoints, providing an estimate of the total area. By adjusting the number of subintervals, users can refine the approximation for more accurate results.

Thus, our calculator is particularly useful in calculus for solving problems involving integration and finding areas between curves. Additionally, you would find the enclosed area between an intersecting curve in a bounded region in less than a minute. you can use our area between two curves calculator with steps. This calculator employs mathematical algorithms to calculate the definite integral of the absolute difference between the two functions over the specified interval.

## What is the Midpoint Rule?

The midpoint rule is a method that uses the **numerical integration method** to calculate the estimated value of definite integrals divided into subintervals.

It is used to find the middle value (from left rectangle sum to right rectangle sum) of an enclosed area in a graph. Although this numerical method provides less accuracy in solution than the trapezoidal or Simpson rule gives less error-free results when you do these calculations manually.

Additionally, the midpoint rule offers a straightforward approach to numerical integration and is particularly useful for functions with varying rates of change. If you would like to find the area under the graph and split that graph into smaller parts you can use our trapezoidal rule calculator. Moreover, our calculator provides a convenient method for refining the approximation by adjusting the number of partitions to achieve greater accuracy.

## Formula Behind Midpoint Rule Integral Calculator

The **midpoint rule formula** is used to find the approximate value of the area under the curve. The midpoint formula used by our midpoint rule calculator is,

$$ \int_{a}^{b} f(x) \;=\; \Delta x \biggr( f \biggr( \frac{x_0 + x_1}{2} \biggr) + f \biggr( \frac{x_1 + x_2}{2} \biggr) + f \biggr( \frac{x_2 + x_3}{2} \biggr) + … + f \biggr( \frac{x_{n-2} + x_{n-1}}{2} \biggr) + f \biggr( \frac{x_{n-1} + x_n}{2} \biggr) \biggr) $$

If you're interested in exploring other calculus methods, you might also use our volume shell method calculator. The shell method is another technique used to calculate volumes of solids of revolution, particularly when the cross-sections are cylindrical shells. It's a fascinating concept worth exploring.

- f(x) is the function of the integral for the midpoint rule
- a and b are the upper and lower limits of the midpoint integral
- Δx is the length of the subinterval that is Δx= (b-a)/n
- x0,x1,x2 are the subintervals of the midpoint rule

## Working of Midpoint Rule Approximation Calculator

The midpoint rule integration calculator follows a simple procedure to calculate the area under the curve that is divided into n subintervals in a closed interval. The calculator is specially designed to calculate the various types of complex definite integral problems.

When you give the input to the solver, it will first **analyze the given function**. After identifying all the input values it starts the evaluation process. Firstly it will evaluate the Δx value using the upper and the lower limits a and b respectively after subtracting b from a, it divides into n(number of subintervals of rectangle in a graph) as Δx = b – a / n.

After getting the value of Δx length of sub-intervals, the midpoint rule formula calculator supposes the **value of subintervals** between a to b. Now it has x0,x1,x2,..... values(according to n subintervals) and add all the required values into the formula to get the midpoint value of f(x0),f(x1)...

Lastly, the midpoint rule error calculator has f(x0),f(x1),... and Δx values, it put these values in the midpoint rule formula and get the solution of the midpoint rule.

Additionally, the midpoint rule is a fundamental numerical integration technique that serves as a building block for more advanced methods such as Simpson's rule and the trapezoidal rule. If you would like to more accurate approximation compared to the midpoint rule, especially for functions with curvature, you can use simpson rule error calculator. Our calculator also offers an alternative approach that utilizes quadratic approximations to further refine the estimation of the integral.

Now let's understand the example of a midpoint calculator to observe the working process of a midpoint rule calculator.

## Solved Example of Midpoint Rule

An example of the midpoint rule is given below to let you understand the manual calculation as the midpoint rule approximation calculator will give you speedy results but you have to understand the manual steps to solve it.

### Example:

Estimate the following using the midpoint rule four subintervals and compare the final values by actual results.

$$ \int_{0}^{1} x^2 $$

**Solution:**

Each subinterval has length:

$$ \Delta x \;=\; \frac{1-0}{4} \;=\; \frac{1}{4} $$

Therefore, the subintervals consist of,

$$ \biggr[ 0, \frac{1}{4} \biggr], \biggr[ \frac{1}{4}, \frac{1}{2} \biggr], \biggr[ \frac{1}{2}, \frac{3}{4} \biggr], and\; \biggr[ \frac{3}{4}, 1 \biggr] $$

The midpoints of these subintervals are,

$$ \biggr[ \frac{1}{8}, \frac{3}{8}, \frac{5}{8}, \frac{7}{8} \biggr] $$

Thus,

$$ M_4 \;=\; \frac{1}{4} . f \biggr( \frac{1}{8} \biggr) + \frac{1}{4} . f \biggr( \frac{3}{8} \biggr) + \frac{1}{4} . f \biggr( \frac{7}{8} \;=\; \frac{1}{4} . \frac{1}{64} + \frac{1}{4} . \frac{9}{64} + \frac{1}{4} . \frac{25}{64} + \frac{1}{4} . \frac{21}{64} \;=\; \frac{21}{64} $$

Since,

$$ \int_{0}^{1} x^2 dx \;=\; \frac{1}{3} $$

The approximation error here is,

$$ \biggr| \frac{1}{3} - \frac{21}{64} \biggr| \;=\; \frac{1}{192} \approx 0.0052 $$

Thus it is the final solution of our function with specific limits. For further exploration of numerical integration techniques and comparison of results, you may utilize our left riemann sum calculator. Our calculator offers a convenient tool for approximating integrals using Riemann sums, aiding in understanding and analyzing various mathematical problems.

## How to Use the Midpoint Rule calculator

The midpoint rule online calculator has a user-friendly interface so that everyone can **use** it to solve the midpoint of particular definite integrals. Follow some of our guidelines before using it for the evaluation of the midpoint rule.

Additionally, you can utilize the 'Recalculate' button to return to the main page for further evaluation of midpoint examples. Further, for more advanced integration techniques, you may use our disk integral calculator, which provides a convenient tool for computing volumes of solids of revolution using the disk method.

- Enter the definite integral function for midpoints in the respective field
- Add the upper and the lower limits in their respective field
- Add the number of subintervals of a rectangle
- Click the calculate button to get the solution to the midpoint rule problem
- Click the recalculate button that will bring you back to the main page for more evaluation of midpoint examples.

## Results from Midpoint Rule Integration Calculator

The midpoint rule calculator gives you the **outcome of a definite integral question** after entering the input into it. You can get some other options along with the solution to the given problem. It may include as:

- Result option provides you with the solution to the given integral problem of the midpoint rule.
- Possible steps section provide you solution for the midpoint rule for integral
- Plot section draws a graph using the value of the given solution of the midpoint calculator

## Benefits of Midpoint Rule Formula Calculator

The midpoint rule integral calculator provides you tons of **benefits** whenever you use it to calculate the midpoint rule for integrals that are divided into n subintervals. These benefits are

Our Calculator offers convenience, accuracy, and educational value, making it a valuable tool for both learning and practical applications in mathematics and related disciplines. Additionally, you may use our volume calculator washer method, which provides a powerful tool for computing volumes of solids of revolution using the washer method.

- Midpoint rule approximation calculator provides you with an accurate solution with no real-time error.
- The midpoint rule error calculator is a convenient tool that helps you to operate it anywhere through an internet connection
- It is an easy-to-use tool as everyone can manage it easily without any difficulty.
- Our midpoint rule integration calculator is so efficient as it provides solutions to various types of complex problems for finding the midpoint of the definite integral.
- This midpoint rule calculator does not demand any subscription fee.
- You can use it for the calculation of more examples related to the midpoint problems.