MATLAB Compiler overview - Step-by-Step Execution

Concept Flow - MATLAB Compiler overview

Write MATLAB Code

↓

Use MATLAB Compiler

↓

Compile Code into Executable or Library

↓

Distribute and Run Outside MATLAB

↓

User Runs Program Without MATLAB Installed

This flow shows how MATLAB code is written, compiled into standalone programs or libraries, and then run outside MATLAB.

Execution Sample

MATLAB

function y = squareNum(x)
    y = x.^2;
end

A simple MATLAB function that squares a number, which can be compiled into an executable using MATLAB Compiler.

Execution Table

Step	Action	Input	Output	Notes
1	Write MATLAB function	x = 3	Function squareNum created	Prepare code for compilation
2	Run MATLAB Compiler	squareNum.m	Executable or library generated	Compilation process
3	Distribute executable	Executable file	Ready to run on other machines	No MATLAB needed to run
4	Run executable	Input 3	Output 9	Program runs standalone
5	End	-	-	Execution complete

💡 Execution stops after the standalone program finishes running.

Variable Tracker

Variable	Start	After Step 1	After Step 4	Final
x	undefined	3	3	3
y	undefined	undefined	9	9

Key Moments - 2 Insights

Why do we need MATLAB Compiler if we already have MATLAB code?

MATLAB Compiler lets you turn your code into standalone programs that run without MATLAB installed, as shown in execution_table step 3 and 4.

Does the compiled executable run inside MATLAB?

No, the compiled executable runs independently outside MATLAB, which is why step 4 shows running the executable with input and output.

Visual Quiz - 3 Questions

Look at the execution_table, what is the output when the executable runs with input 3?

A 3

B 6

C 9

D Undefined

💡 Hint

Check step 4 in the execution_table where input 3 produces output 9.

At which step does the MATLAB code become an executable?

A Step 2

B Step 3

C Step 1

D Step 4

💡 Hint

Step 2 shows running MATLAB Compiler to generate the executable.

If you change the input from 3 to 4, what will the output be when running the executable?

A 8

B 16

C 7

D 12

💡 Hint

The function squares the input, so 4 squared is 16, based on the variable_tracker and function definition.

Concept Snapshot

MATLAB Compiler turns MATLAB code into standalone executables or libraries.
You write MATLAB functions, then compile them.
Compiled programs run without MATLAB installed.
Useful for sharing programs with users who don't have MATLAB.
Supports creating executables, shared libraries, and more.

Full Transcript

MATLAB Compiler allows you to take your MATLAB code and turn it into a program that runs on computers without MATLAB. First, you write your MATLAB function, like one that squares a number. Then, you use MATLAB Compiler to create an executable file. This executable can be shared and run on other machines. When you run it, it takes input, processes it using your code, and gives output. This way, people can use your MATLAB programs without needing MATLAB software installed.

Practice

1. What is the main purpose of the MATLAB Compiler?

easy

A. To create standalone applications from MATLAB code

B. To edit MATLAB scripts interactively

C. To debug MATLAB code line by line

D. To convert MATLAB code into Python code

Solution

1. Step 1: Understand MATLAB Compiler's function

   MATLAB Compiler is designed to package MATLAB programs into standalone apps or libraries.

2. Step 2: Compare options with this function

   Only To create standalone applications from MATLAB code describes creating standalone applications, which matches the compiler's purpose.

3. Final Answer:

   To create standalone applications from MATLAB code -> Option A

4. Quick Check:

   MATLAB Compiler = standalone apps [OK]

Hint: Remember: Compiler makes apps, not edits or debugging [OK]

Common Mistakes:

• Confusing compiler with editor or debugger
• Thinking it converts MATLAB to other languages
• Assuming it requires MATLAB installed to run compiled apps

2. Which of the following is the correct command to compile a MATLAB function myfunc.m into a standalone application?

easy

A. run myfunc.m

B. compile myfunc.m

C. build myfunc.m

D. mcc -m myfunc.m

Solution

1. Step 1: Recall MATLAB Compiler command syntax

   The MATLAB Compiler uses the mcc command with flags; -m creates standalone apps.

2. Step 2: Match options with correct syntax

   mcc -m myfunc.m uses mcc -m myfunc.m, which is the correct command to compile a function into an app.

3. Final Answer:

   mcc -m myfunc.m -> Option D

4. Quick Check:

   Compile command = mcc -m [OK]

Hint: Use mcc -m to compile MATLAB apps [OK]

Common Mistakes:

• Using generic words like 'compile' or 'build' instead of mcc
• Trying to run instead of compile
• Omitting the -m flag for standalone apps

3. What will happen if you run a compiled MATLAB application on a computer without MATLAB installed but with MATLAB Runtime installed?

medium

A. The application will open MATLAB editor

B. The application will run normally using MATLAB Runtime

C. The application will run but with limited features

D. The application will fail because MATLAB is required

Solution

1. Step 1: Understand MATLAB Runtime role

   Compiled MATLAB apps run on computers without MATLAB if MATLAB Runtime is installed.

2. Step 2: Evaluate options based on this fact

   The application will run normally using MATLAB Runtime states the app runs normally using MATLAB Runtime, which is correct.

3. Final Answer:

   The application will run normally using MATLAB Runtime -> Option B

4. Quick Check:

   MATLAB Runtime enables running compiled apps [OK]

Hint: MATLAB Runtime runs compiled apps without MATLAB [OK]

Common Mistakes:

• Assuming MATLAB must be installed to run compiled apps
• Thinking features are limited without MATLAB
• Confusing MATLAB Runtime with MATLAB editor

4. You tried to compile app.m using mcc app.m but got an error. What is the likely problem?

medium

A. MATLAB Runtime is not installed

B. The file app.m does not exist

C. Missing the -m flag to specify standalone app

D. You need to run run app.m instead

Solution

1. Step 1: Check the compile command syntax

   The mcc command requires flags like -m to specify output type.

2. Step 2: Identify missing flag causing error

   Using mcc app.m without -m causes error because output type is unclear.

3. Final Answer:

   Missing the -m flag to specify standalone app -> Option C

4. Quick Check:

   mcc needs -m flag for apps [OK]

Hint: Always include -m flag when compiling apps [OK]

Common Mistakes:

• Forgetting the -m flag
• Assuming MATLAB Runtime affects compilation
• Confusing compile and run commands

5. You want to share a MATLAB program with a friend who does not have MATLAB installed. Which steps should you follow to share your program using MATLAB Compiler?

hard

A. Compile your MATLAB code into a standalone app using mcc -m, then send the app and ask your friend to install MATLAB Runtime

B. Send your MATLAB script file and ask your friend to install MATLAB

C. Convert your MATLAB code to Python and send the Python script

D. Send your MATLAB code and ask your friend to install MATLAB Compiler

Solution

1. Step 1: Identify how to share MATLAB code without MATLAB

   MATLAB Compiler creates standalone apps that run without MATLAB but require MATLAB Runtime.

2. Step 2: Choose correct sharing method

   Compile your MATLAB code into a standalone app using mcc -m, then send the app and ask your friend to install MATLAB Runtime correctly describes compiling with mcc -m and sharing the app plus MATLAB Runtime installation.

3. Final Answer:

   Compile your MATLAB code into a standalone app using mcc -m, then send the app and ask your friend to install MATLAB Runtime -> Option A

4. Quick Check:

   Compile + MATLAB Runtime = share without MATLAB [OK]

Hint: Compile app and share with MATLAB Runtime for easy use [OK]

Common Mistakes:

• Sending raw MATLAB scripts without MATLAB installed
• Expecting friend to install MATLAB Compiler
• Trying to convert code manually to other languages