A basic for loop in MATLAB is often used to assign to or access array elements iteratively. For example, let’s say you have a vector A, and you want to simply display each value one at a time:
A = [3 6 9 4 1];
for i = 1:length(A)
disp(A(i))
end
For more examples using for loops, see:
Answer from Walter Roberson on mathworks.com
MathWorks
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for - for loop to repeat specified number of times - MATLAB
Suppose that the loop end value is equal to or close to the maximum or minimum value for the loop index data type. In the generated code, the last increment or decrement of the loop index might cause the index variable to overflow. The index overflow might result in an infinite loop.
University of Victoria
web.uvic.ca › ~monahana › eos225 › matlab_tutorial › tutorial_2 › for_loops_and_m_files.html
An Introduction to MATLAB: For Loops and M-Files
We will now consider our next example ... the for loop (more generally, ``iteration''). We talked in class about an example of an iterative calculation - radioactive decay. Starting with some amount of U238, we know that each billion years we lose a fraction alpha, that is, ... and so on. To predict U(n), we start with U(1) and iteratively multiply by the factor 1-alpha. How do we do this in MATLAB...
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Basics of For Loops in MATLAB | Updating Values in MATLAB For Loops ...
25:16
How to use for loop in MATLAB - YouTube
14:26
Example: Matlab For Loop Introduction - YouTube
07:17
MATLAB for Engineers - Introduction to for Loops (Part 1 of 4): ...
13:37
MATLAB For Loop Tutorial - YouTube
Matlab: Exercise 11: Loops - YouTube
AlgorithmMinds
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For Loop in MATLAB - Explained with Examples
December 9, 2025 - For example: If you need to run code 10 times, process arrays element-by-element, or repeat computations for different parameters, a for loop is your go-to tool. ... MATLAB automatically assigns values to the loop variable i from start_value ...
Medium
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for loop in MATLAB (With Examples) | by CodingCampus | Medium
November 23, 2023 - A for loop can also contain other conditional statements such as: if, elseif and else. ... for i = 1:1:length(x) if x(i)<0 y(i) = 0; elseif x(i)<5 y(i) = x(i)^2 +3; else y(i) = 2*x(i); endend · Note: Make sure each logic statement is ended with the end function. Here we have an example that is best to illustrate by plotting the function. This guide shows you how to plot functions in MATLAB if you do not know how to do so.
UW Computer Sciences
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for Loop --> Exercises
Iteration that should repeat until a condition is met (or while a bad condition exists) should be implemented with a while loop as shown here: val = -1; while val < 0 | rem(val,1) ~= 0 val = input('Enter a positive integer or zero: '); end · Write a for loop that counts the number of values ...
Brandeis University
people.brandeis.edu › ~pmherb › MATLABbootcamp › loops.html
Loops — Matlab Boot Camp
This occurs because we will store the base value in the first index of the results vector. The first line of a for loop is the word for and a variable that will change value after every loop, followed by the range of values the variable will take. In our example we choose i = 1:5.
Electronic Clinic
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For Loop in Matlab Explained with Example Codes
September 9, 2021 - We are going to write a script file to evaluate the function (y) where y is equal to: y= x2 For x starting at a value of 0 and ending at a value of 8 in increments of 2. X= 0, 2, 4, 6, 8 We are going to do this using a for loop.
Unisa
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Practical 4: For- and While- Loops, If-statements | learnonline
MATLAB offers features to allow you to control the sequencing of commands by setting conditions. The following table shows the main types. ... Note: the command ‘for i=1:1:10’ does not create an array. Note: the command ‘for i=1:1:10’ is equivalent to ‘for i=1:10’. ... This way is a bit longer, so if you definitely know how many times you will need to do some commands, use for –loop...
GeeksforGeeks
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MATLAB - Loops - GeeksforGeeks
July 27, 2022 - And when the condition becomes false, the line immediately after the loop in program is executed. ... %MATLAB code to illustrate %for loop count=0; while (count < 3) fprintf('Hello From GeekforGeeks\n'); count=count+1; end
MathWorks
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simple for loop problem - MATLAB Answers - MATLAB Central
October 22, 2019 - Create a for loop that adds one to every number in the array. For example [1,2,3] becomes [2,3,4] after the loop is complete. a. create the variable x=1:10; b. set the loop to run the correct amo...
StatAnalytica
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A Complete Guide on Loops in Matlab With Relevant Examples
July 18, 2022 - It is used to implement a single loop or more than one loop within other loops in Matlab. This can be done for ”while” loop or “for” loop statements. See also Discover the Best R Packages for Data Analysis: Unleash the Power of R · Now, let’s check the example of MatLab Nested For ...
TutorialsPoint
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MATLAB - The for Loop
A for loop is a repetition control structure that allows you to efficiently write a loop that needs to execute a specific number of times. The syntax of a for loop in MATLAB is − values has one of the following forms − Create a script file and type
Cyclismo
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Loops — Matlab Tutorial 3.0 documentation - Cyclismo
The for loop is written around some set of statements, and you must tell Matlab where to start and where to end. Basically, you give a vector in the “for” statement, and Matlab will loop through for each value in the vector: For example, a simple loop will go around four times each time changing a loop variable, j:
Engineering LibreTexts
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Chapter 14: MATLAB Loops - Engineering LibreTexts
July 24, 2025 - The index_variable can either be used in calculations inside of the loop if necessary or desired. Similarly to decision structures, the for and end lines of code should not end in a ; The first_pass, increment, and last_pass variables can actually contain functions or mathematical statements as long as they evaluate to a number. For example, consider an array named gamma is defined in the workspace: for kappa = 1:length(gamma) is valid because when the function length(gamma) is evaluated by MATLAB, an integer is returned.
MathWorks
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Simple question for using 'for loop' - MATLAB Answers - MATLAB Central
September 5, 2021 - In your first solution, the code produced the correct output as find(a==0) returns all the indices that contain 0. So it did not matter that you were never visiting these indices directly through your loop. The following code would be a fix to your second solution : b = 2:2:10-1 % This array contains all the even indices till 10 (excluding 10 itself) for n = 1:2:10 % This is my homework request.I can't change this. ... Sign in to comment. Sign in to answer this question. MATLAB Language Fundamentals Loops and Conditional Statements
MathWorks
mathworks.com › matlabcentral › answers › 322505-for-loop-problem
For loop problem. - MATLAB Answers - MATLAB Central
January 30, 2017 - I am trying to loop my calculations with a long data, but I do something wrong. size(a)=15 186 for i=1:size(a,1) bcn(i,:)=abs(a(i,:)-a(i+1,:)); end The idea is that bcn should equal ...
MathWorks
mathworks.com › matlabcentral › answers › 13073-for-loop-matlab
FOR LOOP MATLAB - MATLAB Answers - MATLAB Central
August 4, 2011 - The full question is: Write 4 lines of code to use a forloop in the variable i to calculate and store the values of t and h=(3+t)t. Continuing with the above and assuming the out variable is h, allocate memory with NaN command for t and h. b. ...
Applied Mathematics
colorado.edu › amath › sites › default › files › attached-files › wk3_loops.pdf pdf
Week 3: If, For, and While APPM 2460 1 Introduction
For the above problem, we would want to loop through a variable · that takes values 2, 4, 6, 8, and so on, up to 20, and display the variable each time we execute the loop. Let’s see how to do that. Let’s give it a try. Open a new script, enter the following, and save/run it: ... • We then tell that variable (1) where to start, (2) what step-size to take between numbers, and (3) ... • The inside of the loop tells Matlab to display the value of 2 ∗i at each iteration of the loop.