Introduction to Linear Approximation Calculator

Linearization of a function calculator is an online tool that linearizes a function at a particular point. It helps to approximate the value of a function using the approximation formula. It enables the students and mathematicians to understand how a function or curve behaves at a particular point. A linearization calculator uses a tangent line equation as a general function to approximate the given function. Comparing a function is a lengthy and tough process. Here we introduce an online tool that can help find the approximate value of a given function quickly.

How does the linear calculator work?

Local Linear Approximation Calculator uses a tangent line equation to find an approximation of a function at a given position. linearization of a function calculator finds the equation of the tangent at a given point to approximate a given function.

Linear Approximation is sometimes referred to as Linearization or Tangent Line Approximation. It is a calculus method that uses the tangent line to approximate another point on a curve.

Linear Approximation is a method that estimates the values of f (x) as long as it is near x = a. The Tangent line equation is shown below,

$$ ? \;=\;?(?) \;+ \;?′(?)(? \;− \;?) $$

Where f(a) is the function of a curve, f’(a) is the function's first derivative, or it is also known as the slope of the tangent line at a. It is the method of determining the line equation that is nearer estimation for a given function at x=a.

Example: Find the linearization of

$$ ?(?)\;=\;3x^3 \;at \;a\;=\;1 $$

First substitute the value of a in f(x) to find f(a).

$$ ?(?) \;=\; ?(1) \;=\; 3(1)^2 \;=\; 3 $$

So we have the point (1,3).

Now find the value of f’(x)

$$ ?′(?) \;=\; 6? $$


$$ ?′(?) \;=\; ?′(1) \;=\; 6(1) \;=\; 6 $$

Equation of tangent line is,

$$ ? \;=\; ?(?) \;+\; ?′(?)(? \;−\; ?) $$

Substituting the values of f(a), f’(a) and a

$$ ? = 3 + 6(? − 1) $$


$$ ? = 3 + 6? − 6 $$


$$ ? = 6? − 3 $$

This is the required solution for the given function. Here you have seen that approximating a curve may be a lengthy process.

How to find the linearization

There are straightforward, easy steps for computing a linear approximation of a function.

These are:

  1. You need to write the function in the Enter “Function” box in step one.
  2. In step two, enter the value of an at which you want to find a linear approximation of any function. Write it in the “Enter a point” box.
  3. In the last step, click on the “Calculate” button.

After a few moments of clicking the calculate button, the local linear approximation calculator will start showing results accurately.

Why to use linearization calculator

Linear approximation is a simple method of estimating a curve on a particular point. But sometimes, it can be hard to find the tangent line equation manually for a point. But the use of the linearization of a function calculator can make it easier for you.

This calculator does not show only results; it also explains the step-by-step procedure. If you are an expert in calculus or solve different equations manually, you can do the process by hand. Otherwise, you may not make linear approximations correctly. That’s why you need to use this calculator to find the linearization.

Benefits of using linearization of a function calculator

Linear Approximation or tangent line approximation is an essential concept because it is widely used in the method of finite differences to produce first-order methods for solving or approximating solutions to equations. Linearization calculator helps you to understand this concept.

There are some benefits of using this calculator, which I cannot regret.

  1. Local Linear Approximation Calculator is easy to use because it contains simple steps.
  2. It is an efficient tool because it executes fast and shows the results.
  3. Suppose you are new to linearization of a function calculator. In that case, you do not need external help to use this calculator because it has already given a function as an example so that the user can easily understand its use.
  4. This calculator explains the solution step by step to make it easy to understand.
  5. This is a beneficial tool because it can approximate parametric, polar, or explicit curves.
  6. This calculator finds the linearization with plots of a graph concerning the given function at a particular point along with the step-by-step procedure.
  7. You do not have to subscribe to any package or pay a fee to use this tool because this is a free online calculator.
  8. This is a reliable calculator because it approximates the given function accurately and quickly. You don’t need to verify the given solution by hand.
  9. You can practice more examples with Linear Approximation Calculator to understand this concept quickly.
  10. Like other websites, the linearization of a function calculator does not demand to complete any offer or watch an ad to access it. find the linearization with this calculator is a significant benefit because it does not waste your time.
Alan Walker

Alan Walker

Last Updated June 02, 2022

Studies mathematics sciences, and Technology. Tech geek and a content writer. Wikipedia addict who wants to know everything. Loves traveling, nature, reading. Math and Technology have done their part, and now it's the time for us to get benefits.