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How do you add a comment in MATLAB code?

Published in MATLAB Commenting 2 mins read

To add comments in MATLAB code, use the percent ( % ) symbol.

Adding Comments in MATLAB

Comments are essential for explaining your code and making it easier to understand. In MATLAB, the primary way to add a comment is by using the percent sign (%).

According to the reference provided:

  • Use the percent ( % ) symbol to add comments to MATLAB code.
  • Comment lines can appear anywhere in a code file.
  • You can also append comments to the end of a line of code.

Here are some examples demonstrating how to use the % symbol for comments:

  • Full-line comment: A comment that occupies an entire line.

    % This is a comment explaining the next block of code.
x = 10;

  • Appended comment: A comment added at the end of a line of code.

    result = a + b; % Calculate the sum of a and b.

  • Using the example from the reference:

    % Add up all the vector elements.
sum_of_elements = sum(myVector);

Using comments effectively helps others (and yourself!) understand the logic and purpose of your MATLAB scripts and functions.

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