How do you expand all functions in MATLAB?

You can expand all code sections, including functions, within a MATLAB file using the View tab in the Editor or a specific keyboard shortcut.

The reference states that these methods allow you to expand or collapse all of the code within a file. While the question specifically mentions "functions," the described actions apply to all foldable code blocks in the file, including functions, loops, if statements, and more.

Methods to Expand All Code

There are two primary ways to expand all collapsed code sections in your MATLAB file, according to the provided reference:

1. Using the View Tab in the Editor

This method involves navigating through the MATLAB Editor's menu options.

• Step 1: Ensure your cursor is placed anywhere within the MATLAB file you want to expand.
• Step 2: Go to the View tab located in the MATLAB Editor's toolbar.
• Step 3: Select the Expand All button from the options available in the View tab.

This action will expand all foldable code sections throughout the entire file.

2. Using a Keyboard Shortcut

For quicker action, MATLAB provides a convenient keyboard shortcut.

• Action: Simultaneously press the Ctrl, Shift, and Comma (,) keys.

  • Windows/Linux: Ctrl + Shift + ,
  • Note: The reference specifically mentions Ctrl+Shift+,. On macOS, the equivalent shortcut is often Cmd + Shift + ,.

This shortcut performs the same action as selecting "Expand All" from the View tab, instantly expanding all collapsed code in the current file.

Summary of Methods

Method	Description	Shortcut (Windows/Linux)
Menu Option	View Tab -> Select Expand All button	N/A
Keyboard	Use a specific key combination	Ctrl + Shift + ,

These methods are useful for quickly revealing the full code structure of a MATLAB file when sections have been collapsed for easier navigation.