Comments can be inserted in scripts.

They are ignored by the language and help provide information on the intent of the script or statement.

% is used for commenting: anything following the % sign on the line is disregarded.
A = 2 + 2 % comment here
A comment can be an entire line.
%This line does nothing.
%{ %} is a comment block. Any text within the block is ignored, like a normal comment. This is use for comments that take up multiple lines.
%{  This is
a comment
of more than one
line %}