MATLAB Programming

Function Handles
isequal(h1, h2)
ans =
1
[q1 q2] = test_eq(3, -1, 2);
isequal(q1, q2)
ans =
1
The answer makes sense because h1 and h2 will always produce the same
answer:
x = h1(),
x =
418
y =
418
y = h2()
However, handles constructed on different calls to the parent function are
not equal:
isequal(h1, q1)
ans =
0
In this case, h1 and q1 behave differently:
x = h1(),
x =
418
y =
30
y = q1()
Handles Saved to a MAT-File
If you save equivalent anonymous or nested function handles to separate
MAT-files and then load them back into the MATLAB workspace, they are no
longer equal. This is because saving the function handle in effect loses track
of the original circumstances under which the function handle was created,
and reloading it results in a function handle that compares as being unequal
to the original function handle.
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