What is meant by a "toolbox" in matlab?

What is meant by "toolbox" in matlab?for example such as signal processing toolbox and image processing toolbox

Is it only combination of different built in and ready made functions?? Matlab apps and GUIs such as fdatool, is also part of any toolbox?

[Rik]

Why did you edit your question instead of writing a comment?

Some tools that are GUIs are part of a toolbox, some are not. GUIs fall under the umbrella of 'functions and/or classes'.

[ABTJ]

sorry Rik,but i had confusion

Answer 1

[Rik]

A toolbox is a package of functions and/or classes. They provide you with tools, generally for a specific topic (like signal analysis or image processing). There isn't a very strict definition.

Some toolboxes are provided by Mathworks and require a license, others can be downloaded for free from the file exchange.