This document provides an overview of while loops in MATLAB. It explains that while loops allow executing statements repeatedly as long as a condition is true. The syntax of a while loop in MATLAB is presented, including the keyword "while", a boolean expression, statements to execute, and the "end" keyword. An example prints the values of a variable as it increments from 20 to 30. Flow diagrams and further examples demonstrate how while loops repeat statements and terminate based on expression results. The conclusion encourages practicing examples to better understand how while loops work in MATLAB programming.

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While Loop in
MATLAB
"A Complete Solution
for The Beginners"

2. Outline
Overview
Syntax of while loop in MATLAB
Flow diagram of the while loop
statement
How while loop is used in MATLAB
Some examples of the while loop with
output
Conclusion

3. Overview
Matlab is one of the scientific programming languages that is used for various
academic and research purposes. There are several industries that are using this
language, but research organizations and universities are the main clients for this
programming tool. This language is developed by Mathworks. To use this
programming language, one has to purchase its license, but for the beginners as
well as for the students, it comes with a trial version for the limited period. Here
we are going to share with you the while loop in MATLAB.
Matlab has renowned in various universities and colleges because it is used for
scientific computations like signal processing, advanced mathematics, control
system, and much more.

4. Syntax
of while
loop in
MATLAB
Here, we have mentioned the syntax of the while loop
with the appropriate steps method.
While expression
Statements
End
• The keyword for while loop is ‘While’.
• To work with the while loop, the
expression should be true.
• The statement is the action that can be
executed if the expression is true.
• The end is the closed-loop of the
statement.
Syntax:
Syntax:

5. a= 20;
% while loop execution
while( a <30)
fprintf (‘value of a: %dn’, a);
a= a+2;
end
We defined a single variable that is equal to 20.
A % line is the command line in Matlab; therefore, we can ignore this
statement.
While loop has the initial value that is less than 30, which means that the
while loop will execute the value until less than 30.
The next statement will print the value of a. The statement a = a+2 will add
2 to the initial value of a. And it will execute the values till 30.
Example:–
Explanation of the examples

6. The above-mentioned flow diagram is
self-explanatory and quite simple to
understand. It is similar to the steps that
are described in the syntax column.
Whenever a boolean expression is true,
the statement will be executed; otherwise,
it will return a null value.
Flow diagram
of the while
loop
statement:-

7. How while
loop is used
in Matlab
• There must be some boolean expression that has
to be executed by the loop.
• The boolean expression should have some action,
that may be true or false.
• The loop control will move as per the nature of
the expression, that is, either it will execute, or it
will stop working.
A while loop has various parts that require to
understand:
We have already explained the working of the while
loop through the flow diagram and syntax
explanation. Now, we will discuss the overall working
of the while loop in Matlab.

8. Some examples of the while loop
with output
Example
i = 2;
while (i < 5)
i
i = i + 1;
end
Output :
–i = 3
i = 4

9. Conclusion
We hope that this blog will help you
out to understand the use of while
loop in Matlab with the examples and
explanation. We advise you to
execute the above-mentioned
programs and check the output of the
following. By which you can easily
understand the working by using while
loop in Matlab. The coding of the
programming language depends on
the practice, so the more you
practice, the more you can
understand these languages.

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