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Next: Programming
Up: Getting started with Matlab
Previous: Graphical output
If you forget how to use a Matlab function, or what it does exactly, you can
use the on-line help facility. At the matlab prompt try the following (one
at a time):
help abs
help plot
help eig
To get fuller details you may need to consult the online Reference section
of Matlab's
Help Desk
Typing help on its own will print a complete list of the
``topics'' (e.g matlab/general). To list the
functions within a topic, use help again (e.g help matlab/general). The list will include
the so-called `built-in' functions which have been optimised and
pre-compiled for efficiency, further functions which have themselves been
written in the Matlab language (more on that shortly) and supplied as
part of Matlab, and collections of Matlab functions which have been written
for particular applications -- mostly for signal processing, time series
analysis and control engineering. There are several hundred of them
altogether.