Free Integral Calculator for Students

Integral Calculator

An integral calculator is a mathematical instrument that makes evaluating integrals simple. Using an online integral calculator allows you to solve a variety of integral problems quickly and accurately with the help of a math problem solver. Because these two are the core ideas of calculus, the online integration calculator and its methodology differ from the inverse derivative calculator.

How Online Integral Calculator Works?

Calculate The Integrals with Myassignmenthelp

The Integral Calculator is a free online tool that allows you to calculate integrals and antiderivatives of inverse functions. You can double-check your answers with our integral calculator. Furthermore, it assists you in practising by displaying the entire process (step by step integration). All standard integration approaches are available, as well as customized functionalities.

Fill in the integral equation you want to solve in step one.

• Choose between X and Y for the variable.
• Fill in the value for the upper bound.
• Fill in the value for the lower bound.
• Select "CALCULATE" from the drop-down menu.

When you complete the preceding steps and press the calculate button, the step-by-step integral calculator will solve the integral problem by steps right away. The outcomes of the Antiderivative, Integral Steps, Parsing Tree, and the resulting plot will be displayed. You can also evaluate your practice. math problems; by the integral calculator by filling in integral sample instances. You can opt for both double and definite integral calculators that work with steps. The instructors at MyAssignmenthelp.expert enables you to find the material about Integrals and their calculations helpful.

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Get immediate guidance with step-by-step solutions from seasoned tutors on instant integral calculators. (Figer 1.)

Figer 1.

1. Polar Double Integral Calculator:

One of the particular cases of change of variables is the transformation from Cartesian to the polar coordinate system:

X = r cos θ, y = r sin θ.

The determinant for this transformation is

∂(x, y) ÷ ∂(r, θ)

= {∂x ÷ ∂r × ∂x ÷ ∂θ} × {∂y ÷ ∂r × ∂y ÷ ∂θ}

= {∂(rcosθ) ÷ ∂r × ∂(rcosθ) ÷ ∂θ} × {∂(rsinθ) ÷ ∂r × ∂(rsinθ) ÷∂θ}

= cosθ −rsinθ × sinθ rcosθ 

= cosθ × rcosθ −(−rsinθ) × sinθ

=rcos2θ+rsin2θ

=r(cos2θ+sin2θ)

=r.

As a result, the differential for polar coordinates is, dxdy = {∂(x,y) ÷ ∂(r,θ)} × drdθ = rdrdθ. 

2. Derivative Of Integral Calculator:

Your input: find ∫x cos(x2) dx

Let u=x2

Then du=(x2) ′dx =2xdx and x dx=du/2.

Thus,

∫x cos(x2) dx=∫cos(u)/2du

3. Apply The Constant Multiple Rule:

∫ c f (u)du = c ∫ f(u)du with c=1/2 and f(u)=cos(u):

∫cos(u)du ÷ 2 =(∫cos(u)du ÷2)

The integral of the cosine is ∫cos(u)du=sin(u):

∫cos(u)du ÷ 2 = sin (u) ÷ 2

Recall that u=x2

sin(u) ÷ 2=sin(x2) ÷ 2

Therefore,

∫x cos(x2) dx=sin(x2) ÷ 2

Add the constant of integration:

∫ x cos(x2) dx=sin(x2) ÷ 2 + C (Answer)

4. Partial Integral Calculator:

Let N (x, y) = sin x cos y − xy + 1. Find ƒ (x, y).

As N (x, y) is the partial derivative of some function ( x, y) with respect to y, N must be partially integrated with respect to y to recover. This circumstance can be represented in the following way:

f (x, y) a/ay N (x, y)

f (x, y) f (.)dy N (x, y)

Therefore,

f (x, y) = ʃ N (x, y) dy

= ʃ (sin x cosy – xy + 1) dy

= sin x sin y – ½ xy2 + y + ξ (x)

5. Surface Integral Calculator:

For a scalar function over a surface parameterized and, the surface integral is given by:

ɸ = ʃs fda = ʃs f (u,v) | Tu ×Tv| du dv, 

where Tu and Tv are tangent vectors and a*b is the cross product.

For a vector function over a surface, the surface integral is given by

ɸ = ʃs F. da

= ʃs (F. nˆ) d a

= ʃs fx by dz + fy dz dx + Fz dx dy

where a*b is a dot product and nˆ is a normal unit vector. If, z=f(x,y) then da is given explicitly by

d a = ± (- dx/dx xˆ - dz/dy yˆ+ zˆ) dx dy

If the surface is surface parameterized using u and v, then:

ɸ = ʃs F. (Tu × Tv) du dv

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Frequently Asked Questions By Students On Integral Calculator

Ans. An Integral Calculator is a free online tool that displays a function's antiderivative. Our online integral calculator tool speeds up the process by revealing the integral value for a particular function in a matter of seconds.

Ans. Step 1. Calculate the antiderivative F(x)

Step 2. Calculate the values of F(b) and F(a)

Step 3. Calculate F(b) – F(a).

Example 1. Let’s calculate the definite integral of the function f(x) = x – 1, on the interval [1, 10].

Step 1.

F(x) = ∫(x−1) dx=x22–x

Step 2.

F (10)F(1) = 1022–10 = 40 = 122–1 = −0.5

Step 3.

F (10) −F (1) = 40−(−0.5) = 40.5

Ans. We cannot directly solve your equations for you, but we can provide you with the best guidance so that you will not need any external help. If you are unsure about beginning your integral project, you should get counselling from our professional advisors. On the internet, MyAssignmenthelp.expert is the primary source of academic tutoring solutions. In addition, you can get the necessary vital homework assistance from certified and experienced writers right now.

The most pleasing thing about MyAssignmenthelp.expert's tutors is that they all have the following characteristics:

• A higher level of education; some even have PhDs to their credit.
• Several years of experience in tutoring working with students.
• Technique for resolving all integral issues that are professional.
• Greater awareness of school/college policies and academic criteria.

Ans. Integral calculators on our website are free.

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