/sci/ - Science & Math

[Anonymous No.8867086]

IT'S HERE
https://www.youtube.com/watch?v=WUvTyaaNkzM

[Anonymous No.8867218]

>>8867086
OH SHIT I didn't know he was doing this

[Anonymous No.8867220]

I'm just waiting for WildCalc

[Anonymous No.8868238]

There seems to be a lot more reiteration this time around. I wonder if people told him that some of his other videos still had some "wait, what?" moments and he's trying to address that.

[Anonymous No.8868263]

>>8867220
>I'm just waiting for WildCalc
This.

If you are a /sci/ poster then you already should know the essence of calculus. The only thing that should excite you that is calculus related is when Wildberger invents calculus without reals. It's going to be fun see him rek the entire mathematical world or end up killing himself when he finds he can't even construct derivatives properly.

[Anonymous No.8868278]

>>8868263
my body is ready

[Anonymous No.8868300]

>>8867086
>has pi as his go to symbol for this video
>doesn't even bother explaining where pi comes from/how to derive
>uses it to explain area of a circle


How hard would it have been to do the C/D explanation? The fact that Ancient Egyptians used simple methods to discover a constant ration existed between the two using nothing more than rope and sticks.

But either way, fairly well done. This should be how it's taught in high schools anways. My Math teacher spent time going over these concepts back then instead of just reiterating formulas to memorize.

[Anonymous No.8868309]

>>8868238
obvioulsy.

I actively noticed that too.
And while it bores me, given that I know calculus well, I think it's a good way to teach

[Anonymous No.8868314]

>>8868300
It's always one brown pi explaining to three blue pis.

And I just assume he discussed pi in another vid

[Anonymous No.8868318]

>>8868314
>one brown pi explaining to three blue pis

Is he suggesting that blacks are superior and smarter? Get this propagandic garbage out of here.

[Anonymous No.8868320]

>>8868318
Well, aren't white people already known to be inferior?

[Anonymous No.8868344]

>>8867086
>3 blue 1 brown
sounds kinky

[Anonymous No.8868393]

>>8868263
Of course but the channel is mostly a introspective and artistic rendering of concepts that he assumes you're already largely familiar with.

[Anonymous No.8868409]

>>8867086

this is below most of his viewers probably

[Anonymous No.8868413]

>>8868263

I don't see why you even need reals for cuckulus

you can do a limit with rationals since rationals resemble reals arbitrarily well

That's why reals are a meme. There are more reals than rationals but rationals can resemble a real arbitrarily well. Think about that.

[Anonymous No.8868423]

>>8868413
I'm sure the people who invented the floating point standard before all of us were born thought about that plenty.

[Anonymous No.8868429]

>>8868300
But that's literally what pi is defined as: the ratio of a circle's circumference to its diameter. When he says "That's just what pi is," it sounds pretty hand-wavey, but that's really as fundamental as it gets.

[Anonymous No.8868442]

>>8868423

floats are a subset of the rationals

[Anonymous No.8868465]

>>8868442
>floats
spotted the computer science indian nigger retard doctor. kys my man.

[Anonymous No.8868469]

>>8868465

you're the one who brought it up dumbfuck

try not smoking rocks before you post

[Anonymous No.8868681]

>>8867086
>asks where the pi comes from in pi*r^2
>proceeds to use the definition of circumference, 2*pi*r, to derive it
so what part of this video was supposed to expand my mind again?

[Anonymous No.8868685]

>>8868409
this, basically

all these concepts are clearly outlined in probably every single calculus book presently in use on the planet

anyone who actually bothered to study in calculus class already understands the concept of an infinitely small dr

[Anonymous No.8868689]

>>8867086

[Anonymous No.8868716]

>>8868318

Brown eyes are genetically superior to Blue eyes, but it's not related to intelligence, since stupid people exists in all skins colors and eye colors

[Anonymous No.8868776]

>>8868681
see
>>8868429

[Anonymous No.8868904]

>>8868685
>>8868409
>>8868309
You guys realize that these are introductory videos right? If you're already familiar with the concepts, maybe you can gain some insight by seeing the animations, but these "essence of" series are meant for brainlets like me who never actually got to learn this stuff, or had such a poor quality introduction in school that the math is essentially useless.

[Anonymous No.8868946]

>>8868409
these videos are meant to offer a different and perhaps unique perspective to look at the subject from, so that you might gain some deeper knowledge and intuition about it

[Anonymous No.8869029]

>>8868413
I wondered the same thing the first time I took analysis. The problem is that the set of rationals is not complete. You can take a limit of rational numbers and end up with an irrational. So you can't take arbitrary limits safely, and analysis doesn't even get off the ground.

[Anonymous No.8869088]

>>8868409

Definitely. Regardless he is one of, if not, the best presenters of mathematics on youtube.

No one else presents these concepts as elegantly, intuitively, and visually.

That said this series is definitely dumbed down compared to his other videos.

[Anonymous No.8869132]

>>8868429
I get that. But he should have took a moment to talk about the history. It wouldn't have taken much, and he could have led off with it before getting into the "heavier" material. I think it's neat that the most basic tools, rope and stakes, were used to determine close approximations of pi back in the times of Ancient Egypt, or maybe before.

[Anonymous No.8869421]

we need an essence of statistics class

[Anonymous No.8869441]

>>8868409
I disagree.

You may be assuming that everybody who sat in a math class about calculus understood it.
To the contrary, I think most people who watch the video didn't really get it.

[Anonymous No.8869625]

>>8868429

Try measuring the circumference of a circle with just a straight edge and compass. You will find "calculus" there before you try finding the area.

[Anonymous No.8870115]

>>8869625
you can use a piece of string or something

>>8869421
His patreon mentions essence of probability next

[Anonymous No.8870127]

>>8870115
Probability will be easy to animate because it's literally just a bunch of dots in boxes.

[Anonymous No.8870994]

>>8870115
>try measuring the circumference of a circle with just a straight edge and compass
>just a straight edge and compass
>just

[Anonymous No.8870998]

The next part is out.

[Anonymous No.8871071]

>>8869625
>straight edge and compass
what did he mean by this?

[Anonymous No.8871078]

>>8868409
what's wrong with expanding a viewer base? Wouldn't it be great if his videos spanned from k-12 even?

I don't see the issue

[Anonymous No.8871097]

>>8868409

regardless, he's doing an incredible service to those who are not as familiar with it.

[Anonymous No.8871109]

>>8871071
Circle maths
North = π
South = 2π

[Anonymous No.8871968]

>>8870994
If the point wasn't to work out the circumference of a circle without using calculus, then there isn't an argument against skimming over where π is derived from

[Anonymous No.8872174]

>>8868716
What is it related to then

[Anonymous No.8872879]

>>8872174


Blue eyes? Not related to anything, it was just a random genetic defect that got spread, since it has been proved that brown eyes are superior in every way (better reflexes, less vision problems, better light tolerance, etc.). I don't know what intelligence is related to, since I'm only an ophthalmologist, the only thing i can confirm is that it's not related to eye color.

[Anonymous No.8872997]

>>8868413
arbitrary ISNT GOOD ENOUGH

I DEMAND PERFECTION

[Anonymous No.8873082]

>>8872879
Intelligence has a correlation with near nearsightedness, as the fundamental cause for near nearsightedness allows for growth of ample intelligence.

[Anonymous No.8873093]

>>8873082
that feel when to intelligent too have good vision

[Anonymous No.8873156]

>>8867086
>instantaneous rate of change is a meaningless concept
dropped

[Anonymous No.8873171]

He has uploaded part 3.

>>8873156
>rate of change
>in an instant

Faggot, what he's saying makes perfect sense. To see change, you have to see at least a period of evolution of the *insert here what you're observing*. In an instant, nothing happens. There are better ways to say what a derivative is, and maybe it's not a very simple concept after all.