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[Music] hello everybody welcome back and today I'm we discuss how we look at vectors in our vectors similar to a variable but it's how we store multiple elements of information in memory first of all I'm going to get rid of that what was previously in the console window so to do that use the hotkey ctrl and alt at the same time as you can see that's put the console window for me so like I said a vector is a vector is a place to store multiple item any memory so we're going to being a crater vector and we're going to use a combined function to create that so we'll call this vector want and the combined function is really starts with a lowercase C so that tells us that we want to combine multiple atoms against this vector so we're just going to do something simple like 100 and we're going to iterate by one each time at 102 103 and 104 and 105 so that's got one two three four five six elements and then so I click run I know that my vector is now installed into and the global environment and it's got sick 126 elements so say now I want to keep my vectors so I know this 6,000 so I want to give my vector and Nate and a couple names so use the names function and you pass then the existing vector you just created something called back one then outside of that we're going to then use so it's basically same apply names to the vector one and vector this time we're going to use the assignment placeholder again so to put in memory when use a combined function and let's just beside some arbitrary name values to each one of these so we're going to call them Gary's is all scary real that's me and then i'm using wife Carrie Carrie result now I'm going to space down after a comma if you put space you can clear right on the next line capital R am results Eric my dad and dot and let's use my mama's so I run those two lines again now my vector is got names attached to said later so if i print this out now i'll expect to see a vector with names associated yeah so Gary result care resort Pat resort grammars all eras of Carol result let's also talk about whilst we're here vector operations so previously we looked at some variable / a shins so we did the square root of one variable over another the same thing applies for vectors really so let's create a vector 2 and each value here that's in back to what MC some use an assigned six elements this one and it looks back to vector one what I'm going to do is times each value so hundred on a map x 1 1 a 1 x 2 etc etc exactly so I'm basically going to pin one two three four five six let me add that I'm not going to assign this one any means and then I'm going to say let one time you get back to so what does it expect then is 100 times one is going to be a hundred 101 x 2 is going to be children to exaggerate cetera et cetera yep so 100 200 and 2 306 412 so basically we've done a multiplication there and of each item and we've got it's got to be identically sized as well that's important note to mention so with the 600 in thatin six owners in that is I'm going to compare them or if I'm going to do some kind of let's do raise it each to the power of vector to now this is going to complement astronomical values as you can see you don't really need to use the print function plus your results to the console window I scientist could practice then what I could do as you can see it's got some scientific numbers so 1.34 0096 to the power of E + 12 so I experience up to 12 so is H operations any way you could assign this to results back up and then I could pass in the same outcome as of them previously so vector 1 x connected to this won't print out because as you can remember if it's a placeholder it gets stored in memory or variable they're all stored in the global environment memory so to return that I'd after then print it result vector that's just something to be aware of and that's the same as that we got previously but we printed it directly it's let me just imma take this is printers directly to console console whereas this is in memory or doesn't know what to do that and then when we'll go print now it does yeah that makes sense so that gets printed directly out that stores it in memory and then we use print to actually return it so yeah that's just a little on Bates for operations but you can do a lot more a lot more sophisticated operations than that allows just to give you a flavor so in the next section as this has been life in quite comprehensive section so far what we'll do is we'll move on to something called vector indexing and vector slicing so selecting certain elements out of your vector but as you can see if you had defected to in an Excel spreadsheet this is how it look essentially so we've got perfekt one back to and it's just rows of data so it's going to be 101 102 103 104 105 106 six islands yep but one two three four five to six and all I did with the vector operations is I'm saying that kinds that and that should replicate exactly what just done that so if you go back to the console window you'll find that those results are the same so let me just use this split screen to do this so and what I just done here is 101 then I specify I'm going to start going out okay slight snag one 22 23 24 105 so yeah the last value there should be six thirty and it is yeah 6 30 matches exactly with that 613 but yet I just it's analogous really to just rows of data in Excel okay till the next one like I said we'll talk about some vector indexing and vector slicing so catch me next time I hope that was informative you got any questions just ping me an email ping me a message sorry in the comments page and I'm endeavoured to respond as soon as possible thanks guys and catch you next time