Latest videos by GR1o6180339887498948

Proof Without Words
Posted by: GR1o6180339887498948

Video duration: 115 seconds

This is a fun proof about the area of the circle. It might not be very convincing but it's fun.
Watch it in HD for the highest clarity.

Related: area, of, circle

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The Vertex of a Parabola
Posted by: GR1o6180339887498948

Video duration: 180 seconds

The vertex of a parabola is very useful in mathematics. Here you'll see two easy methods on how to derive the x value of the vertex.

Related: vertex, parabola, math

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Complex Variables Part 5
Posted by: GR1o6180339887498948

Video duration: 270 seconds

This part explains the Absolute Value also known as the Modulus.

Related: complex, variables, part, math

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Complex Variables Part 4
Posted by: GR1o6180339887498948

Video duration: 353 seconds

On this part I introduce the conjugate of a complex number. Don't worry we are still in the easy parts.

Related: complex, variables

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Fun graphs Part 1
Posted by: GR1o6180339887498948

Video duration: 193 seconds

If you have Maple you can easily build these graphs, you can see the codes in the video.

Related: fun, graphs, math

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Little Proof by Induction
Posted by: GR1o6180339887498948

Video duration: 179 seconds

This video gives an example of how to prove a mathematical statement by induction. I know, it's a very simple example but it's just for fun.

Related: proof, by, induction, hypothesis

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Latest comments made on this video:

I love the music, ...
By: eeg10. on 08 Feb 12, 04:27:32
I love the music, makes me feel like I am watching? an adventure.

@milkjug1 Song: ...
By: GR1o6180339887498948. on 17 Jun 11, 03:14:20
@milkjug1 Song: Nature Artist: Benny Hawes Album: AudioSparx_589 Genre:? Classical

What? music did you ...
By: milkjug1. on 15 Jun 11, 18:20:20
What? music did you use? It sounds awesome

hey guys! heres my ...
By: chakchakaa. on 23 Nov 10, 15:16:00
hey guys! heres my problems? "2 is a factor of n^2-n+2?"

This? is pretty ...
By: simmahisyatta. on 14 Nov 10, 03:10:22
This? is pretty epic music for induction

What i don't ...
By: ROMANNOODLES33. on 21 Jul 10, 02:54:15
What i don't understand? is the way you solve for showing inequalities and and for numbers are factors of an equation. If you can make a video about that would be helpful. Or show some very needed identities that i would need to know because i dont fully understand mathematical induction. Anyways thanks for the vid i enjoyed it

why the video is ...
By: 3784greg. on 01 Jul 10, 10:21:37
why the video is error !!!!!? 1!!!!!

why the video is? ...
By: 3784greg. on 01 Jul 10, 10:20:44
why the video is? error!!!!!!!! !!!!!1

@TheWakeUpCall I'm ...
By: GR1o6180339887498948. on 24 May 10, 12:04:28
@TheWakeUpCall I'm glad to hear this but make sure you know how to use induction very well. Work on a couple of problems. This video? shows only a simple example and is not enough to prepare for a test. Alrighty then, good luck on your exam.

I have an exam? on ...
By: TheWakeUpCall. on 19 May 10, 15:04:17
I have an exam? on this in a couple of weeks, and this really helped me. Thank you.

Very good video. ...
By: mohinderbauer. on 04 May 10, 23:43:33
Very good video. Thank you.?

Awesome? ...
By: Ritzoid. on 06 Apr 10, 20:02:24
Awesome? explanation! Well done

@kyeldon? or woman ...
By: kyeldon. on 05 Apr 10, 17:08:06
@kyeldon? or woman or sth. between ... doesn't matter

@kyeldon or woman? ...
By: kyeldon. on 05 Apr 10, 17:07:34
@kyeldon or woman? or sth. between ... doesn't matter

or woman or sth. ...
By: kyeldon. on 05 Apr 10, 17:07:02
or woman or sth. between ...? doesn't matter

or woman or sth. ...
By: kyeldon. on 05 Apr 10, 17:06:46
or woman or sth. between ... doesn't? matte

thanks a LOT man!?
By: kyeldon. on 05 Apr 10, 17:05:40
thanks a LOT man!?

in less than 3? ...
By: 2ogavino6. on 24 Mar 10, 11:44:16
in less than 3? minutes i have finnally got it...haha!

@rudolf895 Well, ...
By: GR1o6180339887498948. on 25 Jan 10, 22:08:46
@rudolf895 Well, what can I say,? I'm a genius! :) As for trigonometry and calculus there are many channels out there with excellent videos; look at the ones I have subscribed.

very? nice.. :)) ...
By: ChiasaKatie. on 24 Jan 10, 15:07:09
very? nice.. :)) tnx for the video...

i <3? u
By: kudnan. on 21 Jan 10, 21:27:00
i

thanks i undersold ...
By: rudolf895. on 10 Jan 10, 11:25:53
thanks i undersold from this video only my teacher should learn from you! Your awesome pls upload more like? this Trigonometry and calculus if possible pls

excellent way! btw ...
By: hbarada1. on 20 Nov 09, 05:15:10
excellent way! btw nice? music :D

Excellent video!!? ...
By: spartan029. on 24 Oct 09, 16:38:42
Excellent video!!? Very helpful. Plus the music is a nice touch!

Great video and ...
By: sheenapak. on 21 Oct 09, 02:32:08
Great video and music. Keep it up man!?

Complex Variables Part 3
Posted by: GR1o6180339887498948

Video duration: 300 seconds

Part 3 is even more exciting as we learn how to divide two complex numbers!!! Part 4 will be ready in June, wait till you see that one!

Related: complex, variables, math

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Complex Variables Part 2
Posted by: GR1o6180339887498948

Video duration: 297 seconds

This is Part 2 of the series Complex Variables. These videos are meant for you to pose and read the material carefully because there's too much information compacted into a little time frame. Enjoy your lesson and watch Part 1 before any other Part.

Related: complex, variables, part, numbers, imaginary, math, mathematics

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Complex Variables Part 1
Posted by: GR1o6180339887498948

Video duration: 307 seconds

This is the first part of an introduction to complex variables. This video contains a lot of information so I recommend that you pose whenever you have to. You get perfect details if you watch it in HD and full screen.

Related: complex, variables, analysis, imaginary, numbers

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Latest comments made on this video:

@ ...
By: bskapsis. on 16 Jan 12, 14:43:59
@GR1o6180339887498948 There are many trees (i.e. lemon trees), which? a certain year produce ????? lemons....

Awesome video!? You ...
By: EA2Raja. on 16 Jan 12, 08:03:32
Awesome video!? You break it down pretty well. and as some mentioned earlier, good music as well! Props!

@bskapsis The ...
By: GR1o6180339887498948. on 16 Jan 12, 06:26:37
@bskapsis The difference is? ?????. And haven't seen zeros swing from trees yet.

What is the ...
By: bskapsis. on 12 Jan 12, 10:55:55
What is the difference between whole and? natural numbers? Zero doesn't exist in nature?

good loved? your ...
By: MultiYolgezer. on 02 Jan 12, 21:22:58
good loved? your slides

I recommend Complex ...
By: matinaeau. on 14 Oct 11, 04:10:25
I recommend Complex Variables and Applications? from James Ward Brown: very well written and easy to read.

excellent intro! if ...
By: fyckthissht. on 18 Sep 11, 04:51:32
excellent intro! if you ever go into academia as a professor you will be absolutely stellar! best intro the various number sets i've ever seen. ?

These video is ...
By: neranjake. on 11 Sep 11, 16:38:50
These video is really helpful for a person who is stepping into complex analysis. Everybody should be thank full. And please check @2:16 R=Q U I. It is not the case? R={Q U I}. Thank you.

You rocks clear ...
By: MrVinayaksawant. on 20 Jul 11, 14:54:39
You rocks clear the concept about all? types of numbers

@Skjegget Yes. ...
By: factChecker01. on 28 May 11, 19:17:40
@Skjegget Yes. Quaternians and matrices can be considered two extensions of the complex number system. They can represent and solve the problems that complex numbers are used for, and more. But for many practical problems, complex numbers are much more? convenient and get the job done. For the most part, quaternians are not used any more; matrices can be considered a more useful extension of quaternians.

@Forman6 thanks? ...
By: GR1o6180339887498948. on 28 Apr 11, 07:30:04
@Forman6 thanks? for the comment

Not only do you ...
By: Forman6. on 25 Apr 11, 20:29:32
Not only do you have a great taste in? what you are studying but a very nice taste in music as well!

Lol, I love the? ...
By: TrustInTheFallenTV. on 25 Nov 10, 01:26:31
Lol, I love the? bit about all numbers being imaginary. Amazing concept.

@Skjegget Yes, the ...
By: bobcoolbobyeah. on 20 Nov 10, 01:00:44
@Skjegget Yes, the trivial case, where "that set of numbers" your talking about is the set of complex? numbers.

thanx sir.itwas ...
By: nishant1064. on 30 Oct 10, 09:23:38
thanx sir.itwas because of u i? could clearly understand the matter.thank u very much.the presentation is in a good flow

nicely done?
By: alexhamster1134. on 27 Oct 10, 00:29:16
nicely done?

Question: Is there ...
By: Skjegget. on 10 Oct 10, 12:37:23
Question: Is there a set of numbers so? that the complex numbers is a subset of that set of numbers?

Good Job! The ...
By: sekwah09. on 09 Oct 10, 16:10:11
Good Job! The beauty of this presentation lies in it's simplicity. I like the? point made about numbers being abstract objects of the human mind. Look forward to watching part 2, 3,....etc

too easy ?
By: vxt1024. on 04 Jul 10, 07:29:29
too easy ?

Thanks for sharing ...
By: rocket1974a. on 04 Feb 10, 07:00:32
Thanks for sharing this,? great musical choice too :)

ah ok !?
By: Aratapow. on 11 Jan 10, 06:55:47
ah ok !?

Neat? !
By: mecarun. on 22 Sep 09, 20:03:49
Neat? !

Well, I think your ...
By: terae77. on 15 Aug 09, 02:07:31
Well, I think your lesson is really good, you're giving me the oportunity to discard some unnecessary things that my teacher gave me, to learn things that are worth it, and to be more advanced than the class does. Thanks.?

you beat me to it, ...
By: Nanumir. on 22 Jun 09, 17:21:41
you beat me to it, I wanted to start doing this 8 months ago but was to darn lazy, you gave? me a reason to start doing it now, before I graduate... my lecture notes will be posted like ckrazey all over youtube baby

This is nice to ...
By: GR1o6180339887498948. on 29 Apr 09, 01:19:03
This is nice to hear, it will only? get more exciting!!!

Irrational Numbers & their Discovery With a Proof
Posted by: GR1o6180339887498948

Video duration: 623 seconds

This is a brief history of the irrational numbers with a little proof in the end, enjoy.

Related: irrational, numbers, math, mathematics, square, root, history

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Quadratic Formula Derived
Posted by: GR1o6180339887498948

Video duration: 420 seconds

This video explains how to derive the quadratic formula using the method of completing the square.

Related: quadratic, formula, proof

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Pythagorean Theorem Proof
Posted by: GR1o6180339887498948

Video duration: 285 seconds

The Pythagorean Theorem was one of the first mathematical statements to have a proof, and proofs is what mathematics is all about. Without proofs the world of mathematics collapses; so aren't you glad that Pythagoras started it all?

Related: pythagorean, theorem

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Latest comments made on this video:

Simple? and yet ...
By: DontDoTheMeth. on 22 Feb 12, 04:08:53
Simple? and yet beautiful.

Whoa, that's a ...
By: Kaynex. on 19 Feb 12, 00:31:22
Whoa, that's a neat? proof. Too bad the video is so slow... That should take a minute to explain, but the video is almost 5 minutes long.

and this? is one of ...
By: Orgasmatron1226. on 09 Feb 12, 02:44:16
and this? is one of over 370, according to the Wikipedia page! that's a lot

well done? thank ...
By: hackedx1. on 02 Nov 11, 02:02:53
well done? thank you very much

Good video! makes ...
By: adeliakong. on 17 Oct 11, 02:31:12
Good video! makes it easier to? understand Pythagorean Theorem! :)

The music makes ...
By: wogglebugs. on 05 Oct 11, 20:41:32
The music makes this much? easier to watch. Thank you!

That was? beautiful!
By: ladylalue. on 04 Oct 11, 18:29:03
That was? beautiful!

@ ...
By: godlord666. on 21 Aug 11, 08:22:29
@GR1o6180339887498948 Yea I once? had to remember the first 21 digits of pi cause I was stupid enough to make it my username on ebay...

I'm not too? fond ...
By: BifSlamkovich. on 17 Aug 11, 05:24:47
I'm not too? fond of this proof because it is just an equivalence result. How can you intuitively justify Pythagoras's theorem?

@Totopickle? Chopin ...
By: BifSlamkovich. on 17 Aug 11, 05:22:50
@Totopickle? Chopin Nocturne Op.9 No.2

Genius ?
By: robinhorulz56. on 16 Aug 11, 22:43:26
Genius ?

Thxs a mil :) Last ...
By: lucyflutterby. on 20 Jun 11, 20:24:48
Thxs a mil :) Last min Homework made? easy :P Great job

Brilliantly ...
By: daambassador1. on 11 Jun 11, 12:38:34
Brilliantly presented, if i may? say so

@StelthyMunky I ...
By: GR1o6180339887498948. on 28 May 11, 05:13:50
@StelthyMunky I don't, I let firefox do it for me, or I google? this video and the username shows up, but I can always derive it on a calculator if I need to.

This is very well ...
By: quiznoserf. on 19 May 11, 14:52:27
This is very well done. One suggestion I have is to show near the end how FOIL works by taking the (a+b) square and highlighting the square? of side length b in one corner and the square of side lengh a in the opposite corner. What is left are two rectangles of sides a and b.

I usually find math ...
By: eireman1212. on 14 May 11, 23:11:21
I usually find math tedious or boring, but proofs like this are just? so elegant and amazing.

If you are? ...
By: Ralphstricks. on 08 Apr 11, 00:12:50
If you are? watching this...you probably have homework.

Thanks. Beautiful ...
By: CastleVintners. on 18 Feb 11, 19:41:31
Thanks. Beautiful production value! For feedback; for me, it went a little slow? at the beginning. Just saying.

Now do it? for ...
By: anticorncob6. on 05 Feb 11, 20:46:23
Now do it? for triangles.

The person who ...
By: webmastertool. on 01 Jan 11, 23:37:44
The person who disliked this? video was probably ignorant of geometry. Do not let him enter.

i? dont know how i ...
By: nilanjana96. on 29 Dec 10, 12:33:28
i? dont know how i person disliked this video! one of the best math videos iv seen

This is the most ...
By: RsGhost1. on 10 Dec 10, 19:24:02
This is the most common proof,? I once saw one with circles in stead of squares but I can't seem to reproduce it.

I? loveeee it.
By: sjsawyer. on 06 Sep 10, 00:24:37
I? loveeee it.

thx 4 d? upload.... ...
By: kalisetti. on 28 Jul 10, 11:55:22
thx 4 d? upload....itz simply awesome...good work!!!

Excellent! Thanks ...
By: arunkumar446. on 22 Jun 10, 03:25:09
Excellent! Thanks for? posting.

the amazing phi
Posted by: GR1o6180339887498948

Video duration: 71 seconds

How can I derive my user-name?
This video stinks worse than cheese produced in a country that sucks on making cheese. If you like it it's not my fault.
Yea right! Who am I kidding? Everything I do is golden. Everyone will fall in love with this one, especially the Tooth Fairy. It will deeply warm peoples hearts preventing the rapture and the day of reckoning.

Related: phi, math, golden, ratio

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