Don't worry, linear algebra can seem daunting at first, but it's not as complicated as it may seem

-

Don't worry, linear algebra can seem daunting at first, but it's not as complicated as it may seem

"Don't worry, linear algebra can seem daunting at first, but it's not as complicated as it may seem". Thanks for that one CHAT GPT


"Vectors of the same dimension (having the same number of components) can be added or subtracted"

BUT WHYYY

Chat GPT has been explaining to me how to multiply and double vectors ARRRRRGH

How to double them and add them I mean ARRRRRGH

I got this one right though, thanks

So that's awesome

Save for a tiny bit of arithmetic...

What's this? What's next please? What's next? Oh no... Oh no... Oh no 
No please
ARRRRRGH

"Vector Dot Products"

AN IMPORTANT VECTOR OPERATION IN LINEAR ALGEBRA IS THE "DOT PRODUCT"

A DOT PRODUCT TAKES TWO EQUAL DIMENSION VECTORS 

AND RETURNS A SINGLE SCALAR VALUE

BY SUMMING THE PRODUCTS OF THE VECTORS' CORRESPONDING COMPONENTS

THIS CAN BE WRITTEN OUT FORMULAICALLY AS


ARRRRRRRRRRRRRRRRRRRRRRRRGH

WHAT 

IS THIS COURSE I DON'T LIKE IT IT'S TOO DIFFICULT FOR ME PLEASE ARRRRGH

BUT I FIND IT SO AWESOME THOUGH...

Chat GPT please please HALP me

LORD GPT Says that - if the dot product is positive the arrows are pointing in the same direction

If the dot product is negative the arrows are pointing in OPPOSITE DIRECTIONS

IF THE DOT PRODUCT IS ZERO THEN THE LINES ARE PERPENDICULAR AND INTERSECT - LIKE THE LINES OF A NOUGHTS AND CROSSES GAME

Comments

Post a Comment

Popular posts from this blog

Hello World

-
Image
 Hello from Susanna Codes! Hi everyone,  My name is Susanna and I'm a 28-year-old aspiring software engineer from Brighton! As I type this, listening to music from "Le Fabuleux Destin d'Amelie Poulain" (it reminds me of home, in Luxembourg, where I am from - I'm missing home quite a lot lately!) and look forward to some Irish Cream tea in my afternoon break, I am thinking: How lucky I am that my amazing colleague Rosana helped me out with a plan for my software engineer journey (she directed me to the front-end first). How HTML and CSS would not have been my first languages of choice had I not been guided in this direction, as in my head they were seen as 'less-serious' langages. How done I am with what other people think of me and if other people see the 'front-end' as softer then so be it! Everyone has to start somewhere. I am so grateful to be on this journey, with Codecademy's Front-End Engineer Career Path.  Thank you to Async Brighton as
Read more

Yosemite

-
Image
Yosemite I'll never forget the first time I head the song Yosemite by Lana del Rey. I very nearly clicked away.  It was quite near the start of my Software Engineering journey, right near when I start learning the Front-End/Web Development. I was listening to Arcadia by LDR before, maybe twice, and then Blue Banisters came on. I nearly clicked away in the first 30 seconds but I forced myself to keep listening anyway.  I'll never forget how that song has made me feel. It became my song of 2022 even though I only discovered it in November. I can still listen to it every day and get that complete sense of wonder and of awe that I felt the first time that I heard it. That ending of the song is completely amazing, and it just completely just blows me away every time. "Withstanding all the time, changes, and seasons..." - LDR Concise Body Arrow Functions Why am I so bad at arrow functions? Whyyyyyyyyyyy?  Just kidding, I am beginning to get them. But why are they so hard? &
Read more

One song is over, another one in

-
Image
One song is over, another one in This morning's blog post references a song by Brainstorm, a Latvian band, called "Thunder Without Rain." I don't have a lot of time because I am going out to the cinema and I have other plans this evening but I wanted to write something quick. I love this song so much and I love the bridge so much. You can't find it on Spotify I don't think but it's on YouTube here. I took about 7 photos of myself in a room full of laser beams. You'll have to forgive me as I plan to use all 7 of them in blog posts - they all have colour differences. Some obvious. Some subtle. Growing as a software engineer I am desperate to learn and grow as a software engineer. I am desperate to learn and grow as a software engineer. If you don't know that then you don't know me. I am desperate to learn and grow as a software engineer partly because I have this big contribution I know I need to make. I want to make some really amazing contribut
Read more