MATLAB Programming

Classes and Objects: An Overview
The syntax for invoking a method on an object is similar to a function call.
Generally, it looks like
[out1,out2,...] = methodName(object,arg1,arg2, ...);
For example, suppose a user-defined class called polynom has a char method
defined for the class. This method converts a polynom object to a character
string and returns the string. This statement calls the char method on the
polynom object p.
s = char(p);
Using the class function, you can confirm that the returned value s is a
character string.
class(s)
ans =
char
s
s =
x^3-2*x-5
You can use the methods command to produce a list of all of the methods
that are defined for a class.
Private Methods
Private methods can be called only by other methods of their class. You define
private methods by placing the associated M-files in a private subdirectory
of the @classname directory. In the example,
@classname/private/updateObj.m
the method updateObj has scope only within the classname class. This
means that updateObj can be called by any method that is defined in the
@classname directory, but it cannot be called from the MATLAB command
line or by methods outside of the class directory, including parent methods.
Private methods and private functions differ in that private methods (in fact
all methods) have an object as one of their input arguments and private
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