It is very important that all the scripts be documented well, so that the people can understand what the script does and how it accomplishes that. One way of documenting the script is to put comments in it. In the MATLAB, a comment is anything from a % to the end of that specific line. The Comments are completely ignored whenever the script is executed. To put in a comment, simply type the % symbol at the starting of a line, or select the comment lines and then click Text and then Comment and the Editor will put in the % symbols for you.