Loop in MATLAB the best ever guide with examples

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Loop in MATLAB The Best Ever Guide With Examples
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Most of the students are not well aware of the
loops in MATLAB. Likewise, other programming
languages MATLAB also has some loop. So, before
we are getting into the loop in MATLAB, lets
understand what exactly the loop does in
programming. With the help of the loop, you can
execute the block of the statements many times.
Thus the statement executed sequentially i.e.,
the first statement executed, the second one, and
so on.
Overview
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While Loop
The while loop works on the simple phenomena. It
executes the statement continuously until the
specific condition becomes false. Here is the
syntax of while loop- While ltexpressiongt ltstateme
ntgt End In the while loop, the program statement
repeatedly executes as long as the expression
becomes false. In other words, the result
contains the non zero elements or non-empty the
condition becomes true, otherwise false. x
20  while loop execution while( a lt 25
)  fprintf(value of x d\n, a)  x x
1  end
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For loop
The for loop is the best loop in any programming
language. In the for loop, you get a repetition
control structure. It allows you to have full
control to write a loop that needs to execute any
number of times. The syntax of a for loop in
MATLAB for index values ltprogramming
statementsgt end Values There can be following
forms of value And the statement executes until
the index is greater than endval. Initvalstepend
val In this, the index increments by the value
step on each iteration. And it decrements when
the step is negative. valArray In this, the
program creates a column vector index from
subsequent columns of the array. valArray on each
iteration.
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The Nested Loops
You can also use a loop inside another loop in
Matlab. There are two types of nested loops in
MATLAB. The first one is nested for loop, and the
other one is nested while loop. Here is the
syntax of for loop in MATLAB for m 1 j for n
1 k end end The syntax for a nested while loop
statement in MATLAB is as follows while
ltexpressiongt while ltexpression2gt ltstatementgt end e
nd
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The Loop control statement is used to make the
change execution from the normal sequence of the
loop. In this, all the automatically created
objects in the scope destroyed when the scope
leaves by the execution. Hereby the scope means
where the variable is valid in MATLAB. For
example, the scope of the variable remains in the
loop from the beginning of the conditional code
to the end of the code. The scope also tells
MATLAB what to do when the conditional becomes
false. Here in MATLAB, you find two types of loop
control statements i.e., the break statement and
the continue statement.
Loop Control Statements
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Break statement
With the help of the break statement, we can
terminate the execution of for or while loops. If
we put the break statement in any loop, then the
statement which appears after the break statement
is not executed. On the other hand, if we talk
about the nested loops, the break only works in
the loop in which it occurs. Then the statement
automatically passes to the next loop Example a
5 while loop execution while (a lt 10
) fprintf(value of a d\n, a) a a1 if( a
gt 10) terminate the loop using break
statement break end end.
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Continue Statement
In the continue statement, the control
automatically passes the next iteration for both
the for loop and the while loop. Most of the
time, the continue statements work like the break
statement in MATLAB. The continue statement puts
force on the next iteration to take place instead
of forcing the transmission. Example a 5
while loop execution while (a lt 10 ) if a 15
skip the iteration a a 1 continue end fpri
ntf(value of a d\n, a) a a 1 end.
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