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The Fundamental Theorem of Calculus: Unveiling Its Significance

16th October 2023 | 14 Views

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The fundamental theory unlocks the doors to various applications like science, engineering, and economics. The basic theory of calculus corresponds to the mathematical thoughts an elegant revelation that bridges the integration and elegance. In the calculus world, this term revolves around the accumulation of quantities and behaviors of functions. In this essay, we will tell you the workings of an integral calculator that is free of cost and unveil the true significance of the fundamental theory of calculus. In the end, you will be able to explore its origin, parts, and applications in terms of both theory and practice. So are you ready to tackle the problem-solving solutions then stay with us.

Overview of the Theorem and Its Pivotal Role in Calculus:

Integral revolves around the basics of the calculus theorem. It determines the link between differentiation and integration and it also gives us a way to determine definite integrals without using Riemann sums or calculating areas. For this purpose, you will use the integral calculator in order to determine the differentiation and integration.

How Many Types Of Integral?

Before we dive into all the formulas that are taken into account by the integral calculator and are vital for integration calculations, look at their types that help to better understand. Here are main types are as follows:

● Definite integration

● Indefinite integration.

1. Definite integration:

The specific type of integral that has the upper and lower limits on the integral is called the definite integral. It computes the exact numerical value of the integral over a specific interval,

2. Indefinite integration: 

The indefinite integral is also known as the anti-derivative of its functions. It describes their area under the curve.

Formula For Integral Calculations:

An online integral calculator empowers your mathematical calculations, offering precise solutions that insights into the world of definite and indefinite integrals. The formula of integrals can be written as with their derivations;

➢ Definite Integral Formula:

Formula for definite integral is as follows:

∫[a, b] f(x) dx = F(b) – F(a)


● F(x) = antiderivative of f(x).

● ∫ = Integral symbol


You can effortlessly handle significant figures in operations using an integration calculator, a comprehensive step-by-step solution. So, to derive the formula for a definite integral, we start by considering the indefinite integral.

∫ f(x) dx = F(x) + C


● F(x) is antiderivative of f(x)

● C is a constant of integration.

Here, we first determine the values of integration a and b:

∫[a, b] f(x) dx = F(x) |[a, b]

F(b) – F(a)

➢ Indefinite Integral Formula:

Formula for an indefinite integral is:

∫ f(x) dx = F(x) + C


● F(x) = antiderivative of f(x)

● C = constant of integration


Need to find the antiderivative of a function? antiderivative calculator can help! So, to derive a formula for indefinite integral, we consider finding the antiderivative of a function f(x). Start by considering derivatives of f(x)

d/dx [F(x)] = f(x)

After rearranging a formula, we have;

f(x) dx = dF(x)

Integrating both sides, we get:

∫ f(x) dx = ∫ dF(x)

Integrating dF(x) gives us:

∫ f(x) dx = F(x) + C

where C is a constant of integration.

The indefinite integral of f(x) is antiderivative F(x) plus a constant C, resulting in a family of functions.

Akarshit Mahajan



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