(music)
So, we call velocity the derivative of position
and acceleration the derivative of velocity.
That's a mouthful.
Should I do it again?
-(offscreen male) Yeah, let's do that once again.
-So we call velocity the derivative of position
and acceleration the (stumbling) derivative of velocity.
(giggling) lol
-(offscreen male) Maybe once again.
(theme music playing)
So that's what we- (sighs, mumbles)
(whispering) So, that's what we're gonna study first.
That might have even been my fault.
-(offscreen male laughter)
-I stick commas in.
-(offscreen male laughter)
-'Cause otherwise, I'd just go blue, wouldn't I?
-(offscreen male & female laughter)
-I am running out of breath right now.
-(male & female laughter)
-Physics, physics, physics, physics, physics, physics, physics.
(laughing)
David Tennant is a talented person.
-(combined offscreen & Hank laughing)
-(offscreen male) It feels like you're struggling a little bit with equations.
-I'm struggling with "in order to talk about".
-Yeah, I think that-
-Literally.
Which-
...just might help you beat that speed.
So, the derivative of x equals t... squared...
Every time you say that, I'm like...
okay, another take?
-(offscreen female) Yeah-
-(offscreen male & female laughter)
-(offscreen male) Yeah.
-You were close! You didn't quite-
-(offscreen female) You were close.
-If (stumbles)
I'm, like, panicking already.
-Ahh, jeez, my shoes are so big.
-(offscreen male) Good job, Shini. This is-
-(offscreen female) Yeah.
-(all laughing)
-Then, sine x will be the length of the side
opposite that angle,
divided by the hypotenuse.
Haaa-ii-potenuse.
And they donate-
donuh-dono...
(sighing) And they don- Oh my god.
-(offscreen male & female laughter)
-And they denote the
direction.
-(offscreen male & female laughter)
-No, I misspelt it.
Like, say your picture machine (stutters)
Oh my god.
Like-
Hey, this derig-
Aghh..
-(offscreen male) Derigative!
-Which means if you're looking for the (mispronounced) integral-
(correct pronunciation) integral.
Which means if you're looking for the (mispronounced) integral-
(correct pronunciation) Integral!!
The new derivative.
Like the derivative of t squared.
-(combined offscreen male & Shini chuckling)
-Why are we laughing?
Oh, what?
-(offscreen male) Oh, sorry. (laughter)
-Let's pull up another graph
where we'll p-
(exhale)
Let's pull up another graph
where we'll plot the derivative and put little dots where we-
We know it'll be zero.
Oh my god.
But if you started at the four meter mark,
you'd shift it up. A little.
You'd shift it up a little..
(chuckling with offscreen male)
-(offscreen male) Words.
-Oh my god, hang on.
In fact, that's one way to define it, which is kind of like pi
in the sense that- Okay.
-(offscreen male) Yeah. Shake it out.
-(chuckle)
(outro music)
-And now you have everything there is
to know about calculus.
No you don't.
-(offscreen male laughing)
Perfect.
(both giggling)
