MATLAB Study Guide 2026 | Free Questions

MATLAB 2026 is a multi-paradigm programming language that is useful in engineering and mathematics domains. It is used for algorithm development, modeling, prototyping, data analysis, simulation and imaging.

MATLAB is a high-level technical computing language that allows users to solve problems faster than with other traditional programming languages. It also provides an interactive environment for algorithm development and data visualization.

Linspace MATLAB

MATLAB Grader is an online tool that allows educators to scale assessments, autograde assignments, and provide feedback. Using a single web browser, instructors can create and manage interactive course assignments, use an extensive library of reusable example courses and activities, and track student progress with detailed individual and aggregate analytics.

Unlike C++, which can be difficult to read and write, MATLAB is a concise programming language that makes it easy to understand and share code with others. It also enables users to perform symbolic math operations with a variety of tools and algorithms.

A MATLAB screen contains several panels, including a command window, workspace panel, current directory panel, and command history panel. The command window lets users run commands on variables and the workspace panel lets them define new variables.

MATLAB can also call functions written in a large number of languages. This allows users to share code across teams. It can also be used as a programming language for simulations. It also provides a number of different libraries, or toolboxes, to meet the needs of specific users.

💡 MATLAB Basics

What is MATLAB?: MATLAB (Matrix Laboratory) is a high-level programming language and interactive environment developed by MathWorks. It is designed for numerical computation, data analysis, algorithm development, and visualization, making it widely used in engineering, science, and mathematics.
Is MATLAB a programming language?: Yes, MATLAB is both a programming language and a computing environment. It uses its own proprietary language optimized for matrix operations, scientific computing, and technical applications. The language supports procedural and object-oriented programming paradigms.
What does MATLAB stand for?: MATLAB stands for Matrix Laboratory. The name reflects its core design purpose of making matrix computations simple and efficient. Originally developed in the late 1970s, MATLAB has evolved into a comprehensive platform for technical computing.
What is MATLAB used for?: MATLAB is used for numerical analysis, signal processing, image processing, machine learning, control systems, and data visualization. Industries including aerospace, automotive, finance, and biomedical research rely on MATLAB for complex computational tasks and algorithm development.

📋 MATLAB Format

How to create a matrix in MATLAB?: Create a matrix in MATLAB using square brackets with elements separated by spaces or commas for columns, and semicolons for new rows. For example, "A = [1 2 3; 4 5 6]" creates a 2x3 matrix. You can also use functions like zeros, ones, or eye.
How to make a table in MATLAB?: Create a table using the table() function with column vectors as inputs. Specify variable names using the 'VariableNames' parameter. Tables support mixed data types and provide convenient methods for organizing, sorting, and analyzing structured datasets.
How to plot in MATLAB?: Create plots in MATLAB using the "plot(x, y)" command where x and y are vectors of equal length. Customize with additional arguments for line style, color, and markers. Use "xlabel", "ylabel", "title", and "legend" functions to add labels and annotations.
How to set colormap in MATLAB?: Set a colormap using the colormap() function followed by the colormap name like 'jet', 'parula', 'hot', or 'gray'. Apply to specific figures with colormap(figure_handle, 'mapname'). Create custom colormaps by passing an n×3 matrix of RGB values.

📝 MATLAB Registration

Is MATLAB free?: MATLAB is not free for commercial or general use. MathWorks offers paid licenses for individuals, businesses, and academic institutions. However, a free limited version called MATLAB Online Basic is available, and students can access discounted pricing through their universities.
How much does MATLAB cost?: MATLAB pricing varies by license type. Individual licenses start around $149 for home use and $99 for students. Professional perpetual licenses cost approximately $2,150, while academic licenses are significantly discounted. Additional toolboxes incur separate costs.
Can you use MATLAB online?: Yes, MATLAB Online allows you to use MATLAB through a web browser without installation. Access it at matlab.mathworks.com with a MathWorks account. MATLAB Online Basic is free with limited functionality, while full features require a valid license.
How to install MATLAB?: Install MATLAB by downloading the installer from the MathWorks website after creating an account. Run the installer, sign in with your MathWorks credentials, select your license, choose components to install, and follow the prompts to complete the installation process.

✅ MATLAB Passing & Results

How to run MATLAB code?: Run MATLAB code by pressing F5 or clicking the Run button in the Editor. For scripts in the command window, type the filename without the .m extension. You can also select specific code sections and press F9 to run only the selected portion.
How to print in MATLAB?: Print output in MATLAB using the disp() function for simple text and variables, or fprintf() for formatted output. The disp() function displays values without variable names, while fprintf() allows precise formatting with specifiers like %d, %f, and %s.
How to display an image in MATLAB?: Display an image using the imshow() function after reading the image with imread(). The syntax "img = imread('filename.jpg'); imshow(img);" reads and displays the image. For more control, use image() or imagesc() functions with colorbar.
How to save MATLAB code as PDF?: Save MATLAB code as PDF by opening your script in the Editor and selecting File → Print, then choose a PDF printer. For Live Scripts, use Export → Export to PDF directly. To save figures as PDF, use "print('filename', '-dpdf')" command.

📚 MATLAB Preparation

How to use MATLAB?: Use MATLAB by entering commands in the Command Window, writing scripts in the Editor, or creating functions. Start with basic operations like variable assignments and arithmetic. Explore built-in functions, use the help command for documentation, and practice with examples.
How to create a function in MATLAB?: Create a function by typing "function = functionName(input)" at the beginning of a new file. Save the file with the same name as the function. The function can include calculations and must end with the "end" keyword in newer versions.
How to comment in MATLAB?: Add comments in MATLAB using the percent sign (%). Everything after % on a line becomes a comment. Use "%%" to create code sections for organized scripts. Select multiple lines and press Ctrl+R to comment or Ctrl+T to uncomment them.
How to clear command window in MATLAB?: Clear the command window in MATLAB by typing "clc" and pressing Enter. This removes all text from the display without affecting workspace variables. To clear both the window and workspace, use "clc" followed by "clear" or "clear all".

MATLAB Test Questions and Answers

What does linspace do in MATLAB?

The linspace function generates linearly spaced vectors between two specified values. The syntax "linspace(start, end, n)" creates n evenly distributed points. It is commonly used for creating axes for plotting, generating test data for numerical analysis, and defining ranges for mathematical functions in visualizations.

How to transpose a matrix in MATLAB?

Transpose a matrix in MATLAB using the apostrophe operator (') or the transpose function. For matrix A, type "A'" or "transpose(A)" to swap rows and columns. For complex matrices, use "A.'" for non-conjugate transpose to preserve complex values without taking the complex conjugate of elements.

How to use e in MATLAB?

Use Euler's number e in MATLAB with the exp() function. For e raised to a power, type "exp(x)" where x is the exponent. For example, exp(1) returns approximately 2.7183. MATLAB doesn't have a built-in constant 'e', so always use exp(1) to represent Euler's number in calculations and mathematical expressions.

How to open Simulink in MATLAB?

Open Simulink in MATLAB by typing "simulink" in the command window and pressing Enter, or by clicking the Simulink icon in the Home tab toolbar. This launches the Simulink Start Page where you can create new models, open existing ones, or browse example projects for learning system modeling.

How to call a function in MATLAB?

Call a function in MATLAB by typing its name followed by input arguments in parentheses. For example, "result = myFunction(x, y)" passes x and y to the function and stores the output in result. Ensure the function file is saved and located in the current path or MATLAB's search path directories.

What language is MATLAB written in?

MATLAB is primarily written in C, C++, and Java. The core computational engine and many built-in functions are implemented in C and C++ for performance, while the user interface components use Java. Users write MATLAB code in its proprietary M-language, which the interpreter processes to execute underlying compiled routines.

How to comment out multiple lines in MATLAB?

Comment out multiple lines in MATLAB by selecting the lines and pressing Ctrl+R (Windows) or Cmd+R (Mac). Alternatively, wrap code in block comment syntax using %{ at the start and %} at the end. To uncomment, select lines and press Ctrl+T. The Editor menu also provides Comment and Uncomment options under the Text menu.

How to plot a function in MATLAB?

Plot a mathematical function in MATLAB using fplot() for continuous functions or plot() with computed values. For fplot, type "fplot(@(x) sin(x), [0 2*pi])" to plot sine from 0 to 2π. Alternatively, define x values with linspace, compute y values, and use plot(x, y). Customize with title, xlabel, ylabel, and grid commands.

How to use fprintf in MATLAB?

Use fprintf for formatted output by specifying format specifiers like %d for integers, %f for floats, and %s for strings. The syntax is "fprintf('format string', variables)". Add "n" for new lines to create line breaks. It prints to the command window by default or writes to files when a file identifier is provided.

How to update MATLAB?

Update MATLAB through the MathWorks website or the built-in update feature. In MATLAB, go to the Home tab, click Add-Ons, then select "Check for Updates" to see available releases. Alternatively, download the latest version from your MathWorks account portal and run the installer to upgrade your installation.

MATLAB - MATLAB Technical Computing Practice Test