Matlab has several functions that help the programmer perform a specific task in a more easy way. In this release, you will see a useful element in Matlab programming, i.e. the loop. This is a conditional iteration that is used in the language of coding.
For loop in Matlab, Check the applicable condition and perform the job according to the given sentence that can be repeated several times. This will continue until it does not meet the condition. For looping to the loop variable is also called because it allows the loop to show the sequence of each iteration.
What is for loop in Matlab
The For loop in Matlab allows programmers to repeat some commands. Therefore, if you want to repeat some actions in a predetermined way, you can use this circle. There are many loop structures in Matlab that start with a keyword like "when " or "to " and ends with the words ' end '. The For loop phrase is encrypted in multiple sets of expressions.
Some of the examples of For loop in Matlab
Decrement values
In this, the programmer can decrement the values of the defined interval.
Program:
For a = 3.0 : -1.0 : 0.0
disp(a)
End
This program will execute the value by decrementing by ‘1.0’
The output will be:
3
2
1
0
Increment Values
It will increase the given values by the given number of intervals.
program:
for a = 5.0 : 2.0 : 12.0
disp(a)
end
the output will be incremented by 2:
5
7
9
11
Another example of it is:
program:
for a = 2.0 : 1.0 : 5.0
disp(a)
End
Now, the output will be increment by the value 1:
2
3
4
5
Specified Values
It will run the statements for specified values
program:
for a = [2 3 5 7] disp(a)
end
This is how the output will represent:
Output:
2
3
5
7
Use of Repeat Statement for every Matrix Column
Here the A is a 3X3 Identity matrix
Program:
for A = eye (3,3)
disp(‘Current value:’)
disp(A)
end
Output:
Current value:
Diagonal matrix:
1
0
0
Current value:
0
1
0
Current value:
0
0
1
Use of BREAK Statement
To exit from the ‘for loop in Matlab’, the programmers can use the break statement. Without using the break statement, the following example will print the ‘END’ value after each iteration
Program:
for A = eye (2)
disp(‘Value:’)
disp(A)
disp(‘END’)
end
Output:
Value:
Diagonal matrix:
1
0
End
0
1
End
If the programmer uses it with a break statement, then it will break the ‘for loop’ after the initial iteration.
Program:
for A = eye (3)
disp(‘Value:’)
disp(A)
break
disp(‘END’)
end
Output:
Value:
Diagonal matrix:
1
0
0
This shows that the statement is the break after the initial statement.
Conclusion
"For loop " can be used to repeat certain actions, or it can be said that it is necessary to run a specific program several times. But you want to exit the program. If you want to jump to the next instructions and start repeating next, you can use the command below. To create a row vector, one can repeat a single column vector using the switch phrase.
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