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# How to Download and Use Symbolic Math Toolbox 5.2 for MATLAB

## How to Download and Use Symbolic Math Toolbox 5.2 for MATLAB

Symbolic Math Toolbox is a MATLAB add-on that allows you to perform symbolic math computations, such as solving equations, integrating functions, simplifying expressions, and more. You can also generate MATLAB functions, Simulink function blocks, and Simscape equations directly from symbolic expressions, or share your work using the MATLAB Live Editor.

In this article, we will show you how to download and install Symbolic Math Toolbox 5.2 for MATLAB, and how to use some of its features. We will also provide some links to useful resources for learning more about symbolic math in MATLAB.

To download Symbolic Math Toolbox 5.2 for MATLAB, you need to have a MathWorks account and a valid license for MATLAB and Symbolic Math Toolbox. If you don't have an account or a license, you can create one and request a free trial at https://www.mathworks.com/products/symbolic.html.

• Select your platform (Windows, Mac, or Linux) and click on the Download button for MATLAB R2018b (9.5), which is the latest release that supports Symbolic Math Toolbox 5.2.

• On the next page, click on the Add-Ons button and search for Symbolic Math Toolbox. Select Symbolic Math Toolbox 5.2 from the list and click on the Add button.

• Run the installer and follow the instructions to install MATLAB R2018b and Symbolic Math Toolbox 5.2 on your computer.

## How to Use Symbolic Math Toolbox 5.2 for MATLAB

To use Symbolic Math Toolbox 5.2 for MATLAB, you need to start MATLAB R2018b and load the toolbox by typing syms in the Command Window. This will create a symbolic variable x that you can use for symbolic computations.

Here are some examples of how to use Symbolic Math Toolbox 5.2 for MATLAB:

• To solve an equation, such as x^2 + 3*x - 4 = 0, type solve(x^2 + 3*x - 4 == 0) and press Enter. The output will be x = -4 or x = 1.

• To integrate a function, such as sin(x), type int(sin(x)) and press Enter. The output will be -cos(x).

• To simplify an expression, such as (x^2 + x - 6)/(x^2 - 9), type simplify((x^2 + x - 6)/(x^2 - 9)) and press Enter. The output will be (x + 3)/(x + 3).

• To plot a function, such as y = x^3 - x, type fplot(x^3 - x) and press Enter. A figure window will open with the plot of the function.

• To generate a MATLAB function from a symbolic expression, such as y = x^3 - x, type matlabFunction(x^3 - x) and press Enter. The output will be @(x)x.^3-x, which is an anonymous function that you can use in MATLAB.

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