MATLAB Comments

MATLAB Tutorial

MATLAB Comments

Comments in MATLAB are used to explain code, make programs easy to understand, and disable lines of code during testing.

MATLAB is developed by MathWorks.


 What Are Comments?

Comments are non-executable lines in a MATLAB program.
MATLAB_ignores comments while running the program.


Types of Comment in MATLAB

Single-Line Comment (%)

Use the percent sign % to write a comment in one line.

 Everything after % on that line is a comment.


Multiple-Line Comments (%{ %})

Used for block or multi-line comments.

 MATLAB ignores everything between %{ and %}.


Commenting Out Code (Temporarily Disable Code)

You can comment code to prevent execution.

 Useful for debugging and testing.


Why Comments Are Important

  •  Improve code readability

  •  Help others understand your program

  •  Useful for debugging

  •  Essential for academic & professional coding


Shortcut for Comments

  • Ctrl + R → Comment selected lines

  • Ctrl + T → Uncomment selected lines

(Works inside MATLAB Editor)


Example Program with Comments

 Output

30

Important Notes

  • Comments do not affect program execution

  • MATLAB is case-sensitive

  • % inside strings is treated as text, not comment


Summary

Comment TypeSymbol
Single-line%
Multi-line%{ %}
Disable code%

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