Intro to Derivatives | Quick Calculus 1 of 6 | Doc Physics

[@joesamalis]

I'm 50 years old. An electrical engineer...I wish I saw this presentation 30 years ago when I took calculus in college. This 26 min presentation cleared up 30 years of vagueness. Thank you. You are priceless.

[@DocSchuster]

joesamalis That warms my heart. You rock.

[@fr0iler578]

Hey Doc, I am right now self-studying for AP Physics C : Mechanics, and don't really know Calculus much, so should I study limits before watching your videos?

[@coopmasajes]

Limits are very simple indeed to understand. They are the base of derivatives. If you study limits then you will fully understand derivatives. As simple as that. You don't have to study much before limits tu fully understand limits (except, perhaps, some algebra) so you may just dive into limits then, once understood, you dive into derivatives and voilà! Done.

[@ethanabelar]

Isn't that a calculus-based class? Speaking of which, how does it compare to AP Physics 1, if you've taken it (I'm taking it right now)?

[@thidassankaja8039]

how much was your salary? . cuz I'm interested in electronics engineering.

[@tashmahal]

Brilliant! I'm 53 years old and I just learned calculus 26 minutes ago thanks to this gentleman's patience explaining this system in such detail Layman version. Thank you so much Doc !!!

[@jojojorisjhjosef]

I've been trying to find out calculus with 0 experience with all kinds of video but I think this is the best stater lesson I've had.

[@cantinflas46]

Very well expained; never in our lives our teachers make maths this way; I bet they would many math fans would have at this moment. Congratulations to the author whoever he is

[@VoidHalo]

I'm 34 and learning calculus has always been a sort of holy grail for me. I've always been interested in physics and more recently electrical engineering but I always felt I was missing out on a lot not knowing the math. Thanks for helping me realize a goal I've had for over 15 years.

[@logicbug]

Thank you, great video. Probably number 25 of vids I've watched trying to understand what derivative means. I think I've got it now!

[@seriously1184]

Beautiful explained Simply and to the point explained As it should be

[@Divya.309]

Lovely. Perfectly explained. Thank you for sharing such a nice video. Millions of likes.

[@electricjelly_6938]

This cleared up so much for me. Your teaching style is mint, perfectly paced.

[@xxHockeyMonkey92xx]

I'm about to enter my third year of community college, and I'm going to declare my major as mechanical engineering. I look forward to watching the rest of your videos as an aid to my success. Thanks for taking the time to make all these great videos!

[@DocSchuster]

Thank you. I do have videos on AC circuits! Search for them and enjoy!

[@mutthunaveen]

I seriously enjoyed it watching.... First time in my life time I felt like "yes math make sense"......

[@imagination7710]

After a long time searching, i finally see the reason why people use derivatives! thankyou

[@DocSchuster]

Excellent. That's my plan for future videos, and I'll keep them grouped by playlists. Keep in touch with further suggestions.

[@Max47340]

Best explanation of a derivative, you are a rock star!!

[@dhirajkhanal5364]

Best explanation on Derivatives .. Thanks you Doc Schuster

[@substitute101]

i've finally grasped derivatives... this video made all other attempts at understanding laughable, u r pro

[@SeracS354]

Thank you for intuitively and clearly explaining the concepts. It really helped.

[@imassassin124]

i had never done calculus or derivatives before, but i understand after watching this, thanks :)

[@coralaisly]

I liked you from the very first frame. Well done, sir. Well done.

[@lucamarin5421]

A semester entirely wasted not understanding the "magic" behind what derivatives are... Thank you, for a question my professor failed to articulate.

[@YiZongOng]

Thank you so much, sir, this video made it sooooo much easier to understand derivatives!:D

[@KossinoZ]

GREAT! Wish I'd had you teach me 50 years ago!

[@substitute101]

would it be accurate to answer this question like this?: Q: why differentiate? why do it? A: to simplify a difficult problem into something easier to understand/manipulate/calculate/play with

[@SuperLose626]

I love when Daddy Schuster teaches me all about these thick slopes😫

[@Red-zw6zi]

Daym, so THATS what derivatives are I've been struggling with them for so long

[@sail2byzantium]

I'll have to try this again--I found this difficult to follow (Just learning calculus beginning with limits and some brief, beginning stuff so far on finding tangents to curves). Thanks.

[@abnerpratt2619]

Doesnt velocity increase when the pig is on its way down?

[@elmoreglidingclub3030]

Amazing clarity! Much appreciated. I’m hoping calculus itself will offer the insight and clarity of understanding you do. Perhaps Calculus will be the derivative of your explanations??!

[@studyinghurts]

You are amazingg at teaching!! i never took this stuff and its starting tomake sense a little. im studying physics and i get so confused when this stuff is involved cuz i dont take math nemore. the chapter im studying is about alternating current circuits and the equations for ac through inductor and capictor involve this stuff. I really wish you would continue and if you knew anything on alternating current circuits please share!!

[@Noahnrg22]

These videos are so helpful, thanks!

[@DocSchuster]

Thanks, Max! I think you're great, too.

[@lunkasaurus9839]

"And mathematicians use what we call limits, but don't worry we are physicists. We don't have to use limits." I don't know why but that cracked me up!

[@DocSchuster]

You are quite welcome. I'm glad you find it helpful!

[@universumpi]

Had it in college, wasn't that well explained as you did, keep up a good work!

[@WojciechowskaAnna]

negative velocity? like velocity in another direction?

[@Schlohmotion]

4:15 "... using a form called ???" I didn't get the word. I'm still learning english. Can someone help me to write that word out?

[@thidassankaja8039]

"using a form called limit"

[@DocSchuster]

Thanks for saying it! I'm happy to help.

[@sachinrath219]

the graph of beg being thrown is x vs t not y vs t, so it's not the snapshot of the peg as u mentioned, pl clarify n confirm.

[@VndNvwYvvSvv]

3 times x skwurrr. Sounds like a certain southern rap style. The illustration of sin>cos>-sin>cos is nice. We can see how it essentially shifts the graph by 1/4 period, so it makes sense for it to be cyclical!

[@leckal]

I love that video but I still don't understand the real meaning of the D's. v=dx/dt does the d now tell me that I have to differentiate x and also differentiate t? It certainly tells me I have to differentiate something but I think I'm missing something here. If x=5m and t=10s then differentiating both would just bring me v=0/0. What does the d acutally do? And why is there a d in front of the x when only the time Interval is getting close to zero?

[@gbrlbrbs]

The d's are notations of derivation. Say there's a function y=f(t), the derivative of that function would be noted as d(y)/dt, which is saying "derivating x in relation to t". And you derivate functions, not numbers, so derivating the "x=5m and t=10s" wouldn't make any sense.

[@leckal]

Gabriel Barbosa Martinz Thanks for your response, man. I figured it out last week already but I'm glad there are people willing to help :)

[@adityarudra5609]

while finding F(X)=C(X) will the slope y=X square it goes bigger as you have shown,so will the slope never be straight as it goes along ? Will derivative make any change if the slope becomes straight at any instance ?

[@peacebewu]

wonder why having coefficient > than 1 makes slope steeper

[@RanBlakePiano]

Doc. Which should one study first ?calculus or. Physics ?

[@prateekgurjar1651]

what if the curve is in third quadrant is negative ?

[@baselv8680]

absolutely awesome .. spot on and coherent :)

[@eraybulgaria]

This shows that you can learn everything online

[@jimcar53]

brilliant. Thanks very much

[@myatthuaung2570]

Oh man, you are the best ever !!!!!!!!

[@toothpick526]

Doesn't the pig speed up on the way down? Why is it a constant?

[@imagination7710]

Same I dont get that, especially when the pig stops accelerating an changes direction

[@faisalrsiddiqui]

Acceleration of a falling body is constant at 9.8 m/s/s

[@geoninja8971]

It does speed up - the velocity is becoming more and more negative. The constant is the acceleration, not the velocity.

[@acershund1]

Thats because pigs cant fly yet!

[@ROCKNROLLFAN]

I didnt understand derivatives to save my life when I used to sit in on a Calculus class back in 2005.

[@ockham1963]

Excellent teaching

[@Azulaela]

At around 13 minutes, what does C stand for. I don't know if I missed it or if me being new to this whole thing has some effect

[@roryboytube]

Ellabonjella thats where he lost me. He was doing really well until he starting adding in things without explaining..... C? 7? x? unfortunately after that I didn't understand the rest of the video.

[@Qibbles]

C is any constant. I think what he is trying to say is that the slope of any constant is 0

[@christmasisawesome9348]

This is my first time watching a video about Calculus..... it is well explained but I still don't understand the function part T_T.. It would be really helpful if you make a video where you apply Calculus into a real life situation(s).

[@josselyndelgado427]

Oh man! you make it look so easy!! thanks!!!! :D

[@umeilekachidi6996]

Hl

[@vaultboy1580]

This helps me a lot! I am only in grade 5 and trying to get ahead.

[@joshim3312]

This is explained so well

[@sarthakpawar1477]

yes thank you so much it helped lot

[@DocSchuster]

Yay! Go get 'em!

[@omarellaithy3193]

very good and easier to understand thank you!

[@WaydeMRafnel]

Thank you. This is great.

[@vickyyu100]

So can this help me with with my high school math or is this mainly sticking to physics?

[@DocSchuster]

willis zhao I don't delve into too much maff. I'd recommend PatrickJMT, though.

[@vickyyu100]

thx

[@kapilkumarsingh8236]

1. After Find the slope (derivative) What do you want to achieve 2.Use of slope

[@bigagigamigaliga]

thank you for you time and effort, this video really did help me. subscribing! :3

[@RansonJoe]

Thank you. Great video!

[@R0I3I3IE]

This dude went full Yoda at 14:03 That's it.

[@qzorn4440]

matt dillion on gunsmoke asked: how do you want to go back to town, pig or pork? B*] mmm calculus...

[@rinatrinat3098]

Thank you!

[@vnana2001]

Thanks!

[@miguelangelmendezcarrillo6901]

In the first graph you are trying to represent a parabola made by a pig, and you said that in highest part the velocity is zero, that's true in a parabolic movement but the graph you choose X vs T this graph only represent the relation between one distance dimension and time. While parabolic movements occurs in two distance dimensions the graph should show Y the vertical distance dimension. The concept you are trying to explain is fin the next time you represent a parabolic movement you should include X and Y distance variables and time you can put it in an other vertical or horizontal line so there will be three lines one showing the horizontal displacement other the vertical displacement and the other one the time respect the position or maybe you can choose not to represent time so it could be just extra information. Also in a parabola you'll have two different velocities; the vertical one which always will be constant and the horizontal one that will be affected by g.

[@DocSchuster]

+Miguelangel Méndez That seems like a good style suggestion. Thanks.

[@danielfelipeclavijogallego8891]

+Doc Schuster you should try to answer better an be more more clear in the explanations relating them with the graphs you are representing. And a parabola have two dimensions so you have to get the velocity for x and for y and then with the equation Vx=V0×cos of the angle to reach the real velocity of the pig

[@danielfelipeclavijogallego8891]

+Danielfelipe Clavijogallegos V0= Vx ÷ cos of the angle

[@DocSchuster]

This video is really much more about the calculus. I have a couple videos about projectile motion that might be more interesting to you.

[@martinzone8153]

Very good lecture, but, I just wonder, why would somebody launch a pig into the air?

[@DocSchuster]

Seriously, Martin? What are you doing next Saturday night? I'll show you why!

[@coopmasajes]

Well... Instead of a pig think of it terms of launching a politician into the air... It's the same but you have a greater laugh! Specially upon landing...

[@L4Vo5]

"You're gonna love this" As soon as i realized it was gonna be a cosine, i hated it... And when you had those 1,0 and -1 lines, i so badly wished it was actually a triangle wave somehow... but nope.

[@prateekgurjar1651]

I love cosines

[@Dreamsai_]

I have no idea why AP Physics requires Calculus.. they don't even offer Calc in my school, and I have a test on Derivatives..

[@gregoryglavinovich3756]

why "Quick" Calculus ?? if you do it too quickly i wont understand. Lets take it nice and slow

[@abhinavrawal7183]

liked this

[@mukilanik4865]

Good mic will boost your views

[@iambic-kilometer]

Actually, calculus is Latin for small stone, not Greek.

[@alexsere3061]

shots fired

[@jeffreychavey4161]

Do physicists hate pigs for some reason?

[@fenrisvargen]

06:03, 11:50, 20:53 That is some seroius vocal fry (rasping) you got going there xD

[@roryboytube]

you lost me at 'c' where the hell did C come from?

[@sonajero25]

C just represents any constant (i.e., any 'number' such as 1, 2, 3.6, etc..)

[@satvikgarg9945]

i am 14 and in grade 9 and i am trying to understand this but it is impossible man this is hard :(

[@jitendutta8492]

Check out 3Blue1Brown's Essence of Calculus series on youtube

[@eraybulgaria]

The first time I watched the video it was in normal speed,now I'm watching it in 1.75x faster and I understand everything. Wtf is wrong with my brain

[@LaureanoLuna]

By the way, 'calculus' is Latin, not Greek.

[@michaeladams4999]

Cool

[@Xilosphere]

What's with all of these math guys having rings on their fingers?

[@parkerflop]

Marriage

[@Xilosphere]

Mustafa M I know that, but you'd think they'd be smart enough to avoid that sort of rigged contract.

[@parkerflop]

Novakira Sato back in the day marriage wasn't the equivalent of handing a woman a skin peeler.

[@tarasbulba5407]

what is this silly noise in the bacground????

[@miguelangelmendezcarrillo6901]

That isn't the way to represent a parabola

[@DocSchuster]

+Miguelangel Méndez What?

[@jimkeller3868]

It certainly is

[@harlbertmayerh7523]

57 dislikes are the sucker's account

[@Xilosphere]

Man hands.

[@abkyabacha]

You sound like Howard from BBT....you are less humorous though... :D

[@h4plugins334]

WTF is all that random noise in the background??? Did you make this in the school dinner hall? It's SO AMATEUR its embarassing

[@VndNvwYvvSvv]

Maybe a lab or library in a college. You want something with high production value or high content?