@arpithams Any 2 vectors in R2 are linearly independent if they are non-collinear, meaning that they don't lie along the same line. [7,2] and [2,3] are non-collinear because there is no scalar that can be multiplied to either one of them to produce the other. If you graph it you can see they go off in different directions.
you are awesome sir! for those of us who are up studying at 3:30am, you are a godsend! not to mention you should rename your name from khanacademy to linearalgebrafordummies! keep breaking it down for us non-mathematics dummies! plenty of us like math, but don't speak "math" natively...
In my country (Malaysia), I was never exposed to linear algebra at all during high school. I didn't understand many things in class when I started taking first-year linear algebra at college (in Canada) this year, and you were right Sal when you mentioned in your very first Linear Algebra video that this course can seem very confusing if it's not taught in a certain way. Your videos has helped fill in so many gaps in my knowledge about Linear Algebra and I want to thank you for everything!
I especially appreciate some of this vector-centric teaching, and especially the matrices. I just got to a point in one of my electricity textbooks where I'm defining instantaneous values of waveforms as vectors, and they went through it fast and weird.
Thank you very much...something that was very abstract for me, now no matter what exercise you give me, i can THINK right and solve it not with formulas but with your explanations :) thanks a lot you should be paid for that!
DUDE.... YOUR THE SHIT. YOU JUST GOT THE NATURAL TEACHING SKILLS... LOL FOR REALS.
taekwonwelchify 2 days ago
aww, thanks for noticing Sal! I had noticed that videos were getting pretty long, but they're still super helpful, so I didn't wanna say anything. :)
42muslimah 3 days ago
Who is this speaking in the video? God? That is one incredible voice...
2011mshappygirl 3 months ago
Awesome video, better than 'sneezing panda.'
PhilNailedIt 4 months ago 2
This has been flagged as spam show
lol
"if you just look at it"
thumbs up if you know what i'm talking about
00:31
flashperfect 4 months ago
maybe you could put some links in your vids so we can find the next/previous episode easily :).
discy12345 4 months ago 4
thanks man!
discy12345 4 months ago
what program do you use?
emejia92 4 months ago
@emejia92 he uses Smooth Draw and a Wacom writing tablet for writing
Byron10301 3 months ago
Thanks man the Berkeley textbooks are sort of convoluted
TheJuga 5 months ago
you are awesome and thanks for the subtitles
fatihsaidbaran 9 months ago
So... answer me this... Why am I still paying tuition... I mean seriously... This is much higher quality of information sharing than in University.
Sigh...
qqcolaman 9 months ago 5
This has been flagged as spam show
@qqcolaman in todays world, ur tuition is basically for ur exams and the degree certificate.
jangchuptj 3 months ago
Which software do you use for the demonstration?
thekolbaska 9 months ago
you make much more sense than my professor and I dont even speak english
guscosta1 10 months ago
what abt vectors[7,2] and [2,3] are they linearly independent..
arpithams 10 months ago
@arpithams Any 2 vectors in R2 are linearly independent if they are non-collinear, meaning that they don't lie along the same line. [7,2] and [2,3] are non-collinear because there is no scalar that can be multiplied to either one of them to produce the other. If you graph it you can see they go off in different directions.
SpoiledLogic 8 months ago in playlist KhanAcademy - Linear Algebra
where's the 1911 button
EltBerserker 11 months ago
You have officially renewed my faith in linear algebra ;D
carrotfriend 1 year ago
You have officially renewed my faith in linear algebra ;D
carrotfriend 1 year ago
this is awesome
tangoforthemango 1 year ago
thanks!
girlonlaptop 1 year ago
R² detoo. It is you! It is you!
LAnonHubbard 1 year ago
thank you!
thenekoling 1 year ago
we should replace every teacher in the U.S. by screenings of his youtube videos. ROFL
PoolOfTrolls 1 year ago 3
you are awesome sir! for those of us who are up studying at 3:30am, you are a godsend! not to mention you should rename your name from khanacademy to linearalgebrafordummies! keep breaking it down for us non-mathematics dummies! plenty of us like math, but don't speak "math" natively...
skaai 1 year ago
In my country (Malaysia), I was never exposed to linear algebra at all during high school. I didn't understand many things in class when I started taking first-year linear algebra at college (in Canada) this year, and you were right Sal when you mentioned in your very first Linear Algebra video that this course can seem very confusing if it's not taught in a certain way. Your videos has helped fill in so many gaps in my knowledge about Linear Algebra and I want to thank you for everything!
bernicedan 1 year ago
@bernicedan well we do have some matrices in moderm math
jishuenkam 1 year ago
@jishuenkam yeah we do, but aren't those really just basic matrices?
bernicedan 1 year ago
thank you very much
luayabd 2 years ago
I especially appreciate some of this vector-centric teaching, and especially the matrices. I just got to a point in one of my electricity textbooks where I'm defining instantaneous values of waveforms as vectors, and they went through it fast and weird.
onlyAerik 2 years ago
You have a talent for teaching, your explanation makes any topic to be easy.
Zalikify 2 years ago
what does redandent mean?
Gommaq 2 years ago
This comment has received too many negative votes show
Unnecessary, repetitive. Already implied. Given, understood.
e.x. the use of the words "as well as" and "both" in the same sentence is redundant.
kanitakhaled 2 years ago
Thank you :)
Gommaq 2 years ago
@kanitakhaled oh shut up douchebag
add454 1 year ago 14
Thank you very much ..
You have good way to teach ..
Kind regard From kuwait ..
TheWFDESIGNER 2 years ago
Thank you very much...something that was very abstract for me, now no matter what exercise you give me, i can THINK right and solve it not with formulas but with your explanations :) thanks a lot you should be paid for that!
BlastedNation 2 years ago
HD? thank goodness
blackspoty2 2 years ago
you a very good teacher ,
i like your teaching style very much .
You are doing great work ,
thanks
MrWaqasyaqoob 2 years ago
wow, amazing, so easy, THANK YOU
angelsarah7 2 years ago
you make much more sense then my professors.
Xlaxsauce 2 years ago 50
Sal I'm a student now but the first thing I'll buy with my first salary will be a donation :) Thank you for these great videos.
jubeidono 2 years ago 7
Thank you, Thank youuuuuuuuuuuuu Sal, To start again posting these Linear Algebra. All i needed.... great.
Waranle 2 years ago 4
Hmm.. Which grade or school in USA do you study Vectors?
bitchslapper12 2 years ago
It is usually introduced in 10th or 11th grade in Algebra II or Pre-calculus.
khanacademy 2 years ago
@khanacademy 1st year uni. for me
kvn89 1 year ago