MATLAB Programming

5 Types of Functions
You can now use this variable as a means of calling findCube from outside
of its M-file:
cubeIt(8)
ans =
512
Note When calling a function by means of its handle, use the same syntax
as if you were calling a function directly. But instead of calling the function
by its name (e.g., strcmp(S1, S2)), use the variable that holds the function
handle (e.g., fhandle(S1, S2)).
Function Handles and Nested Function Variables
One characteristic of nested functions that makes them different from
other MATLAB functions is that they can share nonglobal variables with
certain other functions within the same M-file. A nested function nFun can
share variables with any outer function that contains nFun, andwithany
function nested within nFun. This characteristic has an impact on how certain
variables are stored when you construct a handle for a nested function.
Defining Variables When Calling Via Function Handle. The example
below shows a primary function getHandle that returns a function handle for
the nested function nestFun. ThenestFun function uses three different types
of variables. The VLoc variable is local to the nested function, VInp is passed in
when the nested function is called, and VExt is defined by the outer function:
function h = getHandle(X)
h = @nestFun;
VExt = someFun(X);
function nestFun(VInp)
VLoc = 173.5;
doSomeTask(VInp, VLoc, VExt);
end
end
As with any function, when you call nestFun, you must ensure that you
supply the values for any variables it uses. This is a straightforward matter
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