## Search found 44 matches

Thu Apr 30, 2015 12:49 pm UTC
Forum: Music
Topic: POST YOUR MUSIC HERE and actually Listen too! (Rules in OP)
Replies: 396
Views: 170291

### Re: POST YOUR MUSIC HERE and actually Listen too! (Rules in

Anyway, here's another one. A piece based on automatically generated rhythms. Interestingly enough, a lot of African and other traditional rhythms are based on the Euclidian algorithm. https://soundcloud.com/re_dream/presencing-original-mix edit: final mix now up. I listened to this, and I read the...
Sat Apr 26, 2014 1:37 am UTC
Forum: Music
Topic: POST YOUR MUSIC HERE and actually Listen too! (Rules in OP)
Replies: 396
Views: 170291

### Re: POST YOUR MUSIC HERE and actually Listen too! (Rules in

http://churchchill.bandcamp.com I made some ambient/minimalist stuff, I hope you enjoy. As I was never interrested in mainstream stuff, I like to explore ambient music to see new experimental stuff. I listened your album, and what it evokes me is "this is a relaxing piece". This is not re...
Sun Jan 26, 2014 7:14 pm UTC
Forum: Music
Topic: What are you listening to?
Replies: 9561
Views: 1177285

### Re: What are you listening to?

Fri Jan 24, 2014 4:41 pm UTC
Forum: Mathematics
Topic: i as an Infinitely Tiered Exponent
Replies: 14
Views: 3394

### Re: i as an Infinitely Tiered Exponent

Ok. You prooved that i is a root of the equation : x=e xπ/2 . But iterating u n+1 ==e u n π/2 , starting with any real number will make a divergent sequence, going to infinity. Starting with i will make you stay in i. When you try to differenciate the function f(x)=e xπ/2 , you get f'(x)=(π/2)e xπ/2...
Mon Jan 20, 2014 8:28 am UTC
Forum: Language/Linguistics
Topic: Interesting features in your conlang
Replies: 93
Views: 49424

### Re: Interesting features in your conlang

I made a song in a conlang of mine. It's difficult to put the accentuation in a song, but I use melodic structure instead of it : https://soundcloud.com/o-1-2-3-4-5-6-7- ... th-no-eyes
Sat Jan 18, 2014 9:43 pm UTC
Forum: Mathematics
Topic: Understanding Fast-Growing Functions
Replies: 6
Views: 3601

### Re: Understanding Fast-Growing Functions

One amazing fact about numbers is that they never stop. We built the Ackermann function with recursion of the Ackermann function of the previous ordre (where the function at the ordre 0 is the incrementation), and you can get higher, making a recursion of recursion. Maybe the human brain will never ...
Sun Nov 24, 2013 11:28 pm UTC
Forum: Science
Topic: Can someone explain more about the Higgs Boson and mass?
Replies: 24
Views: 5742

### Re: Can someone explain more about the Higgs Boson and mass?

strake wrote:But as lgw noted, the Higgs itself has mass. Now I'm curious too: how?

Because Higgs boson interact with itself.

Imagine Higgs bosons are like a crowd where people can't move in : that's inertia.
Sat Nov 23, 2013 7:47 am UTC
Forum: Science
Topic: Can someone explain more about the Higgs Boson and mass?
Replies: 24
Views: 5742

### Re: Can someone explain more about the Higgs Boson and mass?

The rest of the mass that makes the proton heavy is a lot of energy. And, in quantum chromodynamics, this energy can be considered as pairs of quarks/antiquarks formed with decays of gluons, so the Higgs bosons consider this as a mass.
Sat Nov 23, 2013 12:08 am UTC
Forum: Science
Topic: Can someone explain more about the Higgs Boson and mass?
Replies: 24
Views: 5742

### Re: Can someone explain more about the Higgs Boson and mass?

The Higgs bosons that creates the mass itself are "virtual" Higgs bosons, like "virtual" photons that creates the electromagnetic interaction. In quantums physics, the void have a lot of particules appearing and dissappearing, but their mass can't be considered as a part of the m...
Fri Nov 22, 2013 11:56 pm UTC
Forum: Music
Topic: Help Finding/Writing Music
Replies: 1
Views: 5727

### Re: Help Finding/Writing Music

Writing music is always an interresting experience.

If you want to start your own music, my advice is to take a lot of time to imagine it, before writing it, or creating it in a software. All your ideas will be well defined, and so you'll not be lost when you'll have to make it.
Sun Jul 14, 2013 7:21 pm UTC
Forum: Music
Topic: POST YOUR MUSIC HERE and actually Listen too! (Rules in OP)
Replies: 396
Views: 170291

### Re: POST YOUR MUSIC HERE and actually Listen too! (Rules in

Maraki wrote:It might be cool to collaborate on something if you're interested

It's a good idea ! If you have a project or something, I'll be glad to participate !
Tue Jul 09, 2013 4:31 pm UTC
Forum: Music
Topic: POST YOUR MUSIC HERE and actually Listen too! (Rules in OP)
Replies: 396
Views: 170291

### Re: POST YOUR MUSIC HERE and actually Listen too! (Rules in

Hi ! By listening to chaoszerom piece, I feel there was a lot of interesting ideas in there, like putting the piano at the end, to make a "cycle" effect. In some terms, I agree with Maraki, the problem with most electronic music is that as people can simply copy/paste parts of their song, ...
Tue Jul 09, 2013 3:36 pm UTC
Forum: Mathematics
Topic: Negative Dimensions
Replies: 9
Views: 4646

### Re: Negative Dimensions

OK, I have just misunderstood the aim of your post. Thanks for putting me in the right direction. There was a mistake in my calculation before. Scaling by a factor of 1/2 increases the content by a factor of 4/3, not 1/3 as I said. Oops. The dimension should be log(4/3)/log(1/2). This is equal to lo...
Mon Jul 08, 2013 12:00 pm UTC
Forum: Mathematics
Topic: Negative Dimensions
Replies: 9
Views: 4646

### Re: Negative Dimensions

Thanks for your replies, they all made me think about. @Forest Goose : Hausdorff-Besicovitch Dimension is the same tool as Fractal Dimension. About how to measure the sets with a countable infinity of points, I had an idea, and I will present it at the end of my post. @antonfire : The fact that Z cr...
Fri Jun 28, 2013 7:49 pm UTC
Forum: Mathematics
Topic: Negative Dimensions
Replies: 9
Views: 4646

### Negative Dimensions

I am actually studying Algebraic Number Theory, and when I was messing up with the discrete additive subgroups of ℝ n , I had an idea. I'll recall the "non-formal" definition of Hausdorff-Besicovitch Dimension (that doesn't work in all cases) : Take a set A, and apply on it an homothetic t...
Fri May 31, 2013 10:19 pm UTC
Forum: Gaming
Topic: Minecraft
Replies: 9438
Views: 1515494

### Re: Minecraft

Do you have checked the new villager noises on last snapshot ? That's the most ridiculous thing I have ever heard in minecraft.
Sat May 25, 2013 5:37 pm UTC
Forum: Science
Topic: Do you believe in proton decay?
Replies: 25
Views: 10142

### Re: Do you believe in proton decay?

I don't know if I have to believe in or not. That's problematic. I want to know the answer, because I want to know if the universe will end as sparse black holes and positonium, or with iron dust.
Mon May 20, 2013 3:44 pm UTC
Forum: Language/Linguistics
Topic: Finding lyrics of songs
Replies: 0
Views: 3000

### Finding lyrics of songs

Hi ! There are many people from all around the world in this forum, so i guess there are so many languages spoken here. I think a thread for lyrics identification should be good here. I'm trying to find lyrics from a greek song named "Σε δρόμους". If you understand the greek, can you wrote...
Sun May 19, 2013 8:59 pm UTC
Forum: Mathematics
Topic: Help needed for a mathematical proof
Replies: 3
Views: 2423

### Re: Help needed for a mathematical proof

I havn't time to try it, but maybe the Binomial Theorem can help you.
Thu May 09, 2013 10:34 pm UTC
Forum: Mathematics
Topic: Divergent Infinite Products
Replies: 14
Views: 4066

### Re: Divergent Infinite Products

So here's my (non-rigorous, sleep-deprived) attempt at this. Let P = 2*3*4*... ln(P) = ln(2) + ln(3) + ln(4) +... The Riemann Zeta function is defined as ζ(s) = 1 + 2^-s + 3^-s + 4^-s +... wherever it converges. Thus it's derivative would be: ζ'(s) = -ln(2)/2^s - ln(3)/3^s - ln(4)/4^s +... By analy...
Wed May 08, 2013 9:44 pm UTC
Forum: Mathematics
Topic: Divergent Infinite Products
Replies: 14
Views: 4066

### Re: Divergent Infinite Products

I like the idea of logarithms, but they're are ineficient to obtain a result here.

Maybe there's a way to distribute step by step and rearange the terms to obtain a series.
Sun May 05, 2013 8:50 pm UTC
Forum: Mathematics
Topic: help with this coupled differential equations
Replies: 6
Views: 3070

### Re: help with this coupled differential equations

I see two fixed points in your equation. The first one depends of the parameters : (Y1, Y2)=( (p1q22-p2q12)/(q11q22-q12q21), (p2q11-p1q21)/(q11q22-q12q21) ) The second fixed point is not a point, but a line : the line of equation Y2=1-Y1. The jacobian matrix of the problem is : | -p11 - q11 Y1 + q11...
Sun Apr 28, 2013 10:43 pm UTC
Forum: Music
Topic: POST YOUR MUSIC HERE and actually Listen too! (Rules in OP)
Replies: 396
Views: 170291

### Re: POST YOUR MUSIC HERE and actually Listen too! (Rules in

I love the style of it. Am going to listen to a few more of your things now. Thanks. It feels like an extra beat is being added at the end of every bar... It's a bit disorientating. Yes, the structure is a bit irregular on the verse : it is 5:5:5:6. On the other hand, the structure of the chorus is...
Sun Apr 28, 2013 11:19 am UTC
Forum: Mathematics
Topic: Backward Euler Method
Replies: 9
Views: 3856

### Re: Backward Euler Method

You can write yn+1 in terms of yn and tn+1 (which is already known), but it works only with particular cases of f.
Sat Apr 20, 2013 11:14 pm UTC
Forum: Science
Topic: Light Propagation?
Replies: 7
Views: 1369

### Re: Light Propagation?

Yes, when the scale of the wavelength is similar or bigger than the scale of the hole, we use physical optics : we assume that light is made by its two fields (electric and magnetic) and we can use the laws of Fresnel diffraction. If the wavelenbth is bigger than the size of the hole, we can use geo...
Fri Apr 19, 2013 6:32 pm UTC
Topic: 1201: "Integration by parts"
Replies: 81
Views: 25838

### Re: 1201: "Integration by parts"

My method : f(x)g(x)d(x)=dy
Wed Apr 17, 2013 4:15 pm UTC
Forum: Mathematics
Topic: What would be the all around "best" base to use?
Replies: 52
Views: 13886

### Re: What would be the all around "best" base to use?

As I said on the other thread, I think the best base is base 12. I often count in base 12 using the symbols 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, X and Ↄ. 12 have a lot of usual divisors, and I like this number for another reason ( http://forums.xkcd.com/viewtopic.php?f=17&t=101445#p3330147 ). Base 60 i...
Wed Apr 17, 2013 12:09 pm UTC
Forum: Mathematics
Topic: Divergent Series
Replies: 12
Views: 4617

### Re: Divergent Series

The series 1+2+3+4+5+6+7+...=-1/12 is one of my favorites. I know a simple proof for it : We call : O=1+3+5+7+9+... the sum of odd numbers E=2+4+6+8+10+... the sum of even numbers so O-E=1-2+3-4+5-6+7-... Let's assume f(x)=1-2x+3x 2 -4x 3 +5x 4 -... =Σ( (-1) n (n+1)x n , n∈⟦0,∞⟦) Let's g(x) be a pri...
Tue Apr 16, 2013 1:20 pm UTC
Forum: Forum Games
Topic: The Alphabet Game - now into Round 3!
Replies: 86
Views: 18654

### Re: The Alphabet Game - Round 2 underway!

Z for [#113] Riemann-Zeta !
Tue Apr 16, 2013 1:11 pm UTC
Forum: Mathematics
Topic: Divergent Series
Replies: 12
Views: 4617

### Re: Divergent Series

Regardless, you do need to be careful when rearranging terms in a series. If your series is absolutely convergent then it's fine, but if it's only conditionally convergent then rearrangement is liable to change the sum. In fact, a conditionally convergent series can be rearranged to converge to any...
Tue Apr 16, 2013 12:17 pm UTC
Forum: Mathematics
Topic: Divergent Series
Replies: 12
Views: 4617

### Re: Divergent Series

S = 1+(-1)+1+(-1)+... S = 0 + 0 + 0 + 0 +... S = 0 In my opinion, this second proof if false. After S=0+0+0+0+..., you can factorize this by S=0.∞. The result is indeterminate. The first result (1/2) can be obtained by a lot of methods, like Cesaro summation or by taking the limit of Σ n=0 ∞ (-1) n...
Mon Apr 15, 2013 10:51 pm UTC
Forum: Forum Games
Topic: The Alphabet Game - now into Round 3!
Replies: 86
Views: 18654

### Re: The Alphabet Game - Round 2 underway!

S for Silence (1199) !
Mon Apr 15, 2013 9:03 pm UTC
Forum: Mathematics
Topic: Divergent Series
Replies: 12
Views: 4617

### Re: Divergent Series

You can show, with a particular algebraic manipulation, that the limit of the sum of powers of 2 is -1. I wasn't talking about a limit. The definition of a limit doesn't make sense in this case. I was talking about the properties of the series. Can you show that there are no algebraic manipulations...
Mon Apr 15, 2013 7:48 pm UTC
Forum: Mathematics
Topic: Divergent Series
Replies: 12
Views: 4617

### Divergent Series

Most of the mathematicians claim that divergent series don't have a result, or tait their result is ∞. But Euler himself (happy 306th birthday) has published himself an article entitled De Seriebus Divergentibus , where he explains that we can find results for divergent series. In this essay, he des...
Mon Apr 15, 2013 6:26 pm UTC
Forum: Music
Topic: Top 10 Artists
Replies: 248
Views: 163915

### Re: Top 10 Artists

My own top 10 ; 1 - Nosfell 2 - Thee Silver Mount Zion 3 - An Lár (Celtic folk music) 4 - Oneira 6tet (Greek/Iranian folk music) 5 - Ez3kiel (Electronic, ambiant) 6 - АукцЫон (Russian rock band) 7 - Godspeed You ! Black Emperor 8 - The Booze Brothers (Irishezed rock band) 9 - Moriarty X - Warsaw Vil...
Mon Apr 15, 2013 12:07 pm UTC
Forum: Mathematics
Topic: A Natural Numeral System
Replies: 30
Views: 6391

### Re: A Natural Numeral System

I love balanced ternary, and I consider this as a mathematical wonder. But I don't think everybody could agree about using it. Speaking of which, the p-adic way of doing things is another interesting approach to represent negative numbers. In base 2, the number -1 would be represented as ...1111 (th...
Fri Apr 12, 2013 9:44 am UTC
Forum: Mathematics
Topic: A Natural Numeral System
Replies: 30
Views: 6391

### Re: A Natural Numeral System

And pi is intimately related to the integers: all infinite sums of the form 1/i 2n , with i running from 1 to infinity, are multiples of π 2n and a rational number, eg the sum of the reciprocals of the squares is π 2 /6, the sum of the reciprocals of the 4th powers is π 4 /90. See http://en.wikiped...
Thu Apr 11, 2013 7:38 am UTC
Forum: Mathematics
Topic: A Natural Numeral System
Replies: 30
Views: 6391

### Re: A Natural Numeral System

I'm not against a 64-base counting, but we have to find the 64 symbols that don't look like each other. The only drawback I can think about this is that it would be very inefficient with the divisions by 3 or 5 (and all the other prime numbers except 2, and obviously 0). For divisibility, I recomman...
Wed Apr 10, 2013 10:03 pm UTC
Forum: Mathematics
Topic: A Natural Numeral System
Replies: 30
Views: 6391

### Re: A Natural Numeral System

I don't know what's the problem with 2. It is the smaller natural integer which can build a meaning numerical system with the rules of positional notation (because with 1, it is not possible). Also, 2 is full of properties : the first prime number, 2=face-edges=summuits in convex polyhedron... Why i...
Wed Apr 10, 2013 9:46 pm UTC
Forum: Music
Topic: POST YOUR MUSIC HERE and actually Listen too! (Rules in OP)
Replies: 396
Views: 170291

### Re: POST YOUR MUSIC HERE and actually Listen too! (Rules in

I originally posted this as it's own topic, but I was told to do otherwise. I figured this is the best place to showcase my band without breaking typically agreed upon rules. IILS;YLS There is a lot of worh behind it ind I found the rythmes very interesting. I love the manner it switch from one tun...