And we also might have a variable step size at some point. So for instance maybe somewhere else in our script we're calculating the end number. What I find is often very useful is to set up these parameters for i with variables. So we're essentially telling MATLAB, 'Start at one, go to ten, and do that in steps of two.' So if we run this one, we see that happens, we start at one and go in steps of two up to nine. So we do that by adding a two in between here. And let's go ahead now, and instead of stepping from one to ten in steps of one, let's step from one to ten in steps of two. We got a simple for loop, stepping through that vector, grabbing all the values of i and displaying them. So that'll step i from one to ten in steps of one and we'll just do something simple here, we'll display 'i' and 'end.' I'll go ahead and drag my command window up here so we can see everything, and let's go ahead and run it. So we do it like this: we say, 'for,' and we'll use 'i' as our index, and then we just use our vector notation, so we'll say, for instance, one through ten. We just have to set up our index as a vector. So for loops in MATLAB are really simple to use. New file, new script, and we'll call it 'Let's Loop.' Open that up. Let's close our switch, and let's create a new file here. Let's go ahead and clear our workspace and our screen. MATLAB has the ability to set up loops like we do in other programming languages, so let's check out a for loop.

For loop in matlab