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MATLAB Tutor

Part 10: Getting Help

MATLAB has an extensive collection of help messages. If you know the name of a command, you can find the proper syntax for the command and examples of its use by typing help command_name. That's assuming you know the command's name.

  1. The commands are stored in various MATLAB libraries. Let's get a list. Enter:

         help

  2. Suppose you want to see if MATLAB has the elementary function arctangent, the inverse tangent function. Look down the list of libraries. There seems to be a likely candidate there. You can identify the directory by using only the last part of the filename. Enter:

         help elfun

  3. Sure enough, the list has a function called atan on it. Enter:

         help atan


Practice finding other MATLAB commands and getting help on their use.


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