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Iteration
(forloops)

The MATLAB iteration structure
(forloop)
repeats a group of statements a fixed, predetermined number of
times. A matching end
closes the statements.
Repeating then means looping or cycling a process usually with the
objective of approaching a desired goal or target.
Each repetition of the process is called an 'iteration', and
the results of

one turn are used as the starting point for the next turn or cycle.
The general format is:
for
variable
= expression
statement
...
end
Example:
c = 5;
% Preallocate matrix, fill it with zeros
a = zeros(c,
c);
for
m = 1 : c
for
n = 1 : c
a(m, n) = 1/(m + n * 5);
end
end
a
The result is:
a =
0.1667
0.0909
0.0625
0.0476 0.0385
0.1429
0.0833
0.0588
0.0455 0.0370
0.1250
0.0769
0.0556
0.0435 0.0357
0.1111
0.0714
0.0526
0.0417 0.0345
0.1000
0.0667
0.0500
0.0400 0.0333
The semicolon terminating the inner statement suppresses
repeated
printing,
and the a
after the loop displays the final result.
It is a good idea to indent
the loops for readability, especially when they are nested.
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'iteration' to home
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'iteration'
to 'Matlab Code'


