Learn MATLAB - 10 Code Examples & CST Typing Practice Test

MATLAB (Matrix Laboratory) is a high-level, interpreted programming language and computing environment developed by MathWorks. It is optimized for numerical computation, data analysis, visualization, algorithm development, and simulation, making it widely used in engineering, scientific research, and applied mathematics.

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MATLAB Counter and Theme Toggle MATLAB Random Number Generator MATLAB Todo List MATLAB Dice Roller MATLAB Countdown Timer MATLAB Prime Checker MATLAB Temperature Converter MATLAB Shopping Cart MATLAB Name Greeting MATLAB Stopwatch

Learn MATLAB with Real Code Examples

Updated Nov 21, 2025

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Code Sample Descriptions

MATLAB Counter and Theme Toggle

count = 0;
isDark = false;

function updateUI()
    disp(['Counter: ', num2str(count)]);
    disp(['Theme: ', ternary(isDark, 'Dark', 'Light')]);
end

function increment()
    global count;
    count = count + 1;
    updateUI();
end

function decrement()
    global count;
    count = count - 1;
    updateUI();
end

function reset()
    global count;
    count = 0;
    updateUI();
end

function toggleTheme()
    global isDark;
    isDark = ~isDark;
    updateUI();
end

% Simulate actions
updateUI();
increment();
increment();
toggleTheme();
decrement();
reset();

Demonstrates a simple counter with theme toggling using MATLAB scripts and console output.

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MATLAB Random Number Generator

for i = 1:3
    num = randi([1, 100]);
    disp(['Random ', num2str(i), ': ', num2str(num)]);
end

Generates random numbers between 1 and 100 and displays them.

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MATLAB Todo List

todos = {};

function addTask(task)
    global todos;
    todos{end+1} = task;
    disp(todos);
end

function removeTask(index)
    global todos;
    todos(index) = [];
    disp(todos);
end

% Simulate actions
addTask('Buy milk');
addTask('Write MATLAB code');
removeTask(1);

Adds and removes tasks from a todo list.

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MATLAB Dice Roller

for i = 1:3
    roll = randi([1,6]);
    disp(['Roll ', num2str(i), ': ', num2str(roll)]);
end

Rolls a six-sided dice three times.

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MATLAB Countdown Timer

count = 5;
while count >= 0
    disp(['Countdown: ', num2str(count)]);
    count = count - 1;
end
disp('Done!');

Counts down from 5 to 0.

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MATLAB Prime Checker

nums = [7, 10, 13];
for i = 1:length(nums)
    n = nums(i);
    if isprime(n)
        disp([num2str(n), ' is Prime']);
    else
        disp([num2str(n), ' is Not Prime']);
    end
end

Checks if numbers are prime.

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MATLAB Temperature Converter

cToF = @(c) c*9/5 + 32;
fToC = @(f) (f-32)*5/9;
disp(['25°C = ', num2str(cToF(25)), '°F']);
disp(['77°F = ', num2str(fToC(77)), '°C']);

Converts Celsius to Fahrenheit and Fahrenheit to Celsius.

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MATLAB Shopping Cart

cart = {};
prices = [];

def addItem(item, price)
    global cart prices;
    cart{end+1} = item;
    prices(end+1) = price;
    disp(cart);
    disp(['Total: ', num2str(sum(prices))]);
end

def removeItem(index)
    global cart prices;
    cart(index) = [];
    prices(index) = [];
    disp(cart);
    disp(['Total: ', num2str(sum(prices))]);
end

% Simulate actions
addItem('Apple', 2);
addItem('Banana', 3);
removeItem(1);

Adds and removes items in a shopping cart with total cost.

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MATLAB Name Greeting

function greet(name)
    disp(['Hello, ', name, '! Welcome!']);
end

% Simulate actions
greet('Saurav');
greet('Alice');
greet('Bob');

Greets users by name.

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MATLAB Stopwatch

time = 0;
while time < 5
    disp(['Stopwatch: ', num2str(time), ' seconds']);
    time = time + 1;
end
disp('Done!');

Simulates a stopwatch incrementing seconds.

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Frequently Asked Questions about MATLAB

What is MATLAB?

What are the primary use cases for MATLAB?

Numerical computation and algorithm development. Data analysis and visualization. Signal, image, and video processing. Control systems and simulations. Machine learning and AI prototyping

What are the strengths of MATLAB?

Rapid prototyping and algorithm development. Extensive documentation and support. Highly optimized for matrix computations. Strong visualization and plotting tools. Wide adoption in industry and academia

What are the limitations of MATLAB?

Proprietary software with licensing costs. Slower than compiled languages for some applications. Not ideal for low-level system programming. Large memory footprint for huge datasets. Limited general-purpose programming features

How can I practice MATLAB typing speed?

CodeSpeedTest offers 10+ real MATLAB code examples for typing practice. You can measure your WPM, track accuracy, and improve your coding speed with guided exercises.

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Learn MATLAB - 10 Code Examples & CST Typing Practice Test

Code Sample Descriptions

MATLAB Counter and Theme Toggle

count = 0;
isDark = false;

function updateUI()
    disp(['Counter: ', num2str(count)]);
    disp(['Theme: ', ternary(isDark, 'Dark', 'Light')]);
end

function increment()
    global count;
    count = count + 1;
    updateUI();
end

function decrement()
    global count;
    count = count - 1;
    updateUI();
end

function reset()
    global count;
    count = 0;
    updateUI();
end

function toggleTheme()
    global isDark;
    isDark = ~isDark;
    updateUI();
end

% Simulate actions
updateUI();
increment();
increment();
toggleTheme();
decrement();
reset();

Demonstrates a simple counter with theme toggling using MATLAB scripts and console output.

Let’s Try →

MATLAB Random Number Generator

for i = 1:3
    num = randi([1, 100]);
    disp(['Random ', num2str(i), ': ', num2str(num)]);
end

Generates random numbers between 1 and 100 and displays them.

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MATLAB Todo List

todos = {};

function addTask(task)
    global todos;
    todos{end+1} = task;
    disp(todos);
end

function removeTask(index)
    global todos;
    todos(index) = [];
    disp(todos);
end

% Simulate actions
addTask('Buy milk');
addTask('Write MATLAB code');
removeTask(1);

Adds and removes tasks from a todo list.

Let’s Try →

MATLAB Dice Roller

for i = 1:3
    roll = randi([1,6]);
    disp(['Roll ', num2str(i), ': ', num2str(roll)]);
end

Rolls a six-sided dice three times.

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MATLAB Countdown Timer

count = 5;
while count >= 0
    disp(['Countdown: ', num2str(count)]);
    count = count - 1;
end
disp('Done!');

Counts down from 5 to 0.

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MATLAB Prime Checker

nums = [7, 10, 13];
for i = 1:length(nums)
    n = nums(i);
    if isprime(n)
        disp([num2str(n), ' is Prime']);
    else
        disp([num2str(n), ' is Not Prime']);
    end
end

Checks if numbers are prime.

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MATLAB Temperature Converter

cToF = @(c) c*9/5 + 32;
fToC = @(f) (f-32)*5/9;
disp(['25°C = ', num2str(cToF(25)), '°F']);
disp(['77°F = ', num2str(fToC(77)), '°C']);

Converts Celsius to Fahrenheit and Fahrenheit to Celsius.

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MATLAB Shopping Cart

cart = {};
prices = [];

def addItem(item, price)
    global cart prices;
    cart{end+1} = item;
    prices(end+1) = price;
    disp(cart);
    disp(['Total: ', num2str(sum(prices))]);
end

def removeItem(index)
    global cart prices;
    cart(index) = [];
    prices(index) = [];
    disp(cart);
    disp(['Total: ', num2str(sum(prices))]);
end

% Simulate actions
addItem('Apple', 2);
addItem('Banana', 3);
removeItem(1);

Adds and removes items in a shopping cart with total cost.

Let’s Try →

MATLAB Name Greeting

function greet(name)
    disp(['Hello, ', name, '! Welcome!']);
end

% Simulate actions
greet('Saurav');
greet('Alice');
greet('Bob');

Greets users by name.

Let’s Try →

MATLAB Stopwatch

time = 0;
while time < 5
    disp(['Stopwatch: ', num2str(time), ' seconds']);
    time = time + 1;
end
disp('Done!');

Simulates a stopwatch incrementing seconds.

Let’s Try →

Frequently Asked Questions about MATLAB

What is MATLAB?

What are the primary use cases for MATLAB?

Numerical computation and algorithm development. Data analysis and visualization. Signal, image, and video processing. Control systems and simulations. Machine learning and AI prototyping

What are the strengths of MATLAB?

What are the limitations of MATLAB?

How can I practice MATLAB typing speed?

CodeSpeedTest offers 10+ real MATLAB code examples for typing practice. You can measure your WPM, track accuracy, and improve your coding speed with guided exercises.