MATLAB for Engineers - Introduction to for Loops (Part 3 of 4): Indexing and Storage in Arrays

A for loop is a loop structure for repeating a calculation a pre-defined number of times. In this video, we'll use a for loop to store data inside of an array. First, I'll introduce you to how MATLAB handles arrays and array indexing. Then, I'll take you through a flow chart of an example problem to visualize how an array can be updated during each loop pass. Finally, I'll walk you through the implementation of a for loop in MATLAB with array indexing and storage in an array. If you are unfamiliar with for loops, I'd recommend watching Parts 1 and 2 of the series (links below).

This is Part 3 of a 4 Part Series on for Loops.

The background music in the intro and outro was written and produced by Michael J Calamas for the exclusive use of David Calamas.

[angie]

Thank you for your video, I am using them to complement my practice with Matlab. Sometimes my book is difficult to follow but with your videos I can understand better the concepts and solve the exercises of my book.

[valeriereid]

Thank you so very much. I appreciate these lectures.

[ΙάσωναςΦιλιππίδης]

Really nice and helpful videos! Greetings from Greece!

[ravindrakhakural]

Great Explanation, you are able to save my dream to be graduated

[kapisotieno]

Good lecture. I understand clearly the objective of this tutorial. I yearn for more. thanks

[AdityaSingh-kwbi]

great to see you again bro we will be rich soon :) loves your videos

[katd]

very good lecture, please add more and more videos

[Fxm-rv]

what if I wrote the following instead?
for x=0:2:8;
y=x^2
end
is it the same? Thanks

[hz]

How can we detect a sign change in a vector using for loop

[aklilug]

can u suggest on handling more than two indexes or variables in matlab. let's, for example, assume that Y is function of three variable, x, z, t and we want to have values of y as all variables change and store results at point of my interest. for example store values of y as t varies and x and z are kept at specific values.

[eedeatlikkle]

Quick q, if you want to just use one value of y, say when i = 3 for some other calculation, how do you do that. Because if I write y in the conmand window it just gives me the latest y value (when i is 5)?? Would really appreciate a quick reply thanks

[stephenoni]

why'd you do it this way and not like the way you did in previous videos? why did you introduce "i" abruptly?

[jacobhouston]

This y(i), the i character is giving me SUCH A HARD TIME watching your vidoes. Everything is smooth until that (i) comes up. Could yo uplease explain this whole (i) concept in a video by itlsef? Very frustrating. :(

[jacobhouston]

I despise this (i). I don't understand it.