Line integrals and vector fields | Multivariable Calculus | Khan Academy
621K views · Feb 26, 2010 · Education
Comments · 133
@turbothrottletrouble4217 · 6 years ago
You know why I like Sal, he assumes you know nothing, then he makes you feel like a genius because he makes you think about what's going on rather than having to rotely memorise everything that he says. Never quit Sal, this is God's work you are doing.
191
@howmathematicianscreatemat9226 · 6 years ago
"The only really valuable thing is intuition" [Albert Einstein]. Most professors don't seem to understand it but Mr. Khan Academy teacher does.
100
@mariannejasmijn8656 · 6 years ago
You explained this is a 20 minute video so much better than my 1,170 page textbook
40
@cruiserkid1 · 12 years ago
You sir are a legend....
95
@BoutinMathieu · 11 years ago
Sal is by far my favorite teacher! :D
14
@passivlyassertive9696 · 9 years ago
Thank you so much for these videos, it's absolutely incredible how intuitive this is, and to think you do this for almost every level of every subject....
21
@99brace · 3 years ago
you’re the best Sal, you’re the only reason I haven’t failed my physics degree so far
1
@AntonioMudge · 11 years ago
you are so funny dude. you're great! your videos touches a little of everything watching you is funny, entertaining and educational!
10
@JaredBGoode1 · 12 years ago
This was much more concise than my professor's explanations. I appreciate it a lot. I was really worried about my quiz tomorrow.
9
@dekippiesip · 13 years ago
Good job, the khan academy needs to expand and reach a wider public btw! It has to get as big as wikipedia or facebook, that would truely revolutionize education.<br><br> Btw, why use i,j,k notation for vectors? Representing vectors as rows or columns is much more convenient, at least for me. And it allows you to work in more than 3 dimensions!
1
@lorettali3842 · 3 years ago (edited)
Can’t believe this is much more clear than my university’s lecture…
@積分定数C-o5n · 3 years ago
thank you so much. you are saving my life
1
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