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MatLab tutorial

MatLab advanced tutorial

MATLAB for loop

MATLAB Loop Statements

For loopIt is a repetitive control structure that allows you to write loops that need to be executed a specific number of times efficiently.

Syntax

The syntax of the for loop in MATLAB is:

for index = values
　　　<program statements>
　　　　　　　　　　　　...
end

Value(values) have one of the following forms-

NumberFormat and Description
1

initval:endval

The index variable is frominitvaltoendval increments1and repeat executionprogram statements,untilindexis greater thanendval.

2

initval:step:endval

In each iteration, theindexThe value is increased by the value of step, if step is negative, then theindexis decreased.

3

valArray

In each iteration, the value from the arrayof valArray'ssubsequent column creates a column vectorindex. For example, in the first iteration, index = valArray(:,1). The loop executes at most n times, where n isvalelof the columnnum, by numel(valArray,1, :) given. InputvalArrayCan be any MATLAB data type, including strings, cell arrays, or structures.

Instance1

Create a script file and enter the following code-

for a =　10:20　
　　　fprintf('value of a: %d\n', a);
end
When running the file, it displays the following result-
value of a:　10
value of a:　11
value of a:　12
value of a:　13
value of a:　14
value of a:　15
value of a:　16
value of a:　17
value of a:　18
value of a:　19
value of a:　20

Instance2

Create a script file and enter the following code-

for a =　1.0:　-0.1: 0.0
　　　disp(a)
end
When running the file, it displays the following result-
1
0.90000
0.80000
0.70000
0.60000
0.50000
0.40000
0.30000
0.20000
0.10000
0

Instance3

Create a script file and enter the following code-

for a = [24,18,17,23,28]
　　　disp(a)
end
When running the file, it displays the following result-
24
18
17
23
28

MATLAB Loop Statements

Addition and Subtraction of MATLAB VectorsMATLAB Simulink