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#1 Re: Computer Math » Ten Cool Experimental Mathematics Problems » Today 04:51:06

Yes, it does but not over here.

I first saw this problem over here:

http://math.stackexchange.com/questions … 74#1581374

Following one of the most basic rules of EM,

If you can not solve a big problem try to solve a smaller one of the same type.

Of course I would like to solve it for 100 containers.

#2 Re: Help Me ! » Logical question s » Today 04:37:17

What is that and how does it answer my question to you?

#3 Re: Computer Math » Ten Cool Experimental Mathematics Problems » Today 04:36:24

The keg problem? No, but I think about it every day. Remember the mighty gAr could not solve it so it is very very tough.

#4 Re: Help Me ! » Logical question s » Today 00:14:32

It is much better if you learn how to find information for yourself.

In your search bar type "surface area of a sphere"

Post here the correct answer.

#5 Re: Introductions » Hello. » Today 00:12:44

I want to say that I think it is disgusting that you would hide under the cover of someone needing help to spread spam. Of all the spammers I have ever seen, you are the worst.

#6 Re: Help Me ! » Logical question s » Yesterday 18:38:55

That is not the formula for the surface area of a sphere...

#7 Re: Help Me ! » Need help with these equations » Yesterday 09:46:34

By computer and using a CAS on that computer.

#8 Re: Help Me ! » Logical question s » Yesterday 08:39:07

What is the formula for the surface area of sphere? If you do not know it, how can you find it?

#9 Re: Help Me ! » Need help with these equations » Yesterday 08:38:17

I can solve in terms of x:

y=1/(-x-1) and z->(-x-1)/x

So, there are infinite number of solutions.

#11 Re: Help Me ! » Need help with these equations » Yesterday 04:27:13

That will not be good enough:

Here are 100 solutions, I am sure there are lots more...

{{x -> -(5645/10002), y -> -(10002/4357), z -> 4357/5645}, {x -> 1334,
   y -> -(1/1335), z -> -(1335/1334)}, {x -> -(3199/5001),
  y -> -(5001/1802), z -> 1802/3199}, {x -> 8015, y -> -(1/8016),
  z -> -(8016/8015)}, {x -> 7170, y -> -(1/7171),
  z -> -(7171/7170)}, {x -> 16, y -> -(1/17),
  z -> -(17/16)}, {x -> 1036, y -> -(1/1037),
  z -> -(1037/1036)}, {x -> -342, y -> 1/341,
  z -> -(341/342)}, {x -> 7533, y -> -(1/7534),
  z -> -(7534/7533)}, {x -> -8781, y -> 1/8780,
  z -> -(8780/8781)}, {x -> 684, y -> -(1/685),
  z -> -(685/684)}, {x -> -(2661/3334), y -> -(3334/673),
  z -> 673/2661}, {x -> -1960, y -> 1/1959,
  z -> -(1959/1960)}, {x -> -(1019/5001), y -> -(5001/3982),
  z -> 3982/1019}, {x -> 7750, y -> -(1/7751),
  z -> -(7751/7750)}, {x -> 8643, y -> -(1/8644),
  z -> -(8644/8643)}, {x -> -(26/1667), y -> -(1667/1641),
  z -> 1641/26}, {x -> 9659, y -> -(1/9660),
  z -> -(9660/9659)}, {x -> 2765, y -> -(1/2766),
  z -> -(2766/2765)}, {x -> 7307, y -> -(1/7308),
  z -> -(7308/7307)}, {x -> -5606, y -> 1/5605,
  z -> -(5605/5606)}, {x -> -3266, y -> 1/3265,
  z -> -(3265/3266)}, {x -> -(1037/5001), y -> -(5001/3964),
  z -> 3964/1037}, {x -> 7906, y -> -(1/7907),
  z -> -(7907/7906)}, {x -> -(1640/1667), y -> -(1667/27),
  z -> 27/1640}, {x -> 7264, y -> -(1/7265),
  z -> -(7265/7264)}, {x -> -9128, y -> 1/9127,
  z -> -(9127/9128)}, {x -> -4750, y -> 1/4749,
  z -> -(4749/4750)}, {x -> -847, y -> 1/846,
  z -> -(846/847)}, {x -> -(8881/10002), y -> -(10002/1121),
  z -> 1121/8881}, {x -> 5682, y -> -(1/5683),
  z -> -(5683/5682)}, {x -> -8386, y -> 1/8385,
  z -> -(8385/8386)}, {x -> -4467, y -> 1/4466,
  z -> -(4466/4467)}, {x -> -7428, y -> 1/7427,
  z -> -(7427/7428)}, {x -> -7210, y -> 1/7209,
  z -> -(7209/7210)}, {x -> -6297, y -> 1/6296,
  z -> -(6296/6297)}, {x -> -(497/5001), y -> -(5001/4504),
  z -> 4504/497}, {x -> -(3401/10002), y -> -(10002/6601),
  z -> 6601/3401}, {x -> -1157, y -> 1/1156,
  z -> -(1156/1157)}, {x -> -(8083/10002), y -> -(10002/1919),
  z -> 1919/8083}, {x -> 3292, y -> -(1/3293),
  z -> -(3293/3292)}, {x -> -(1300/1667), y -> -(1667/367),
  z -> 367/1300}, {x -> 1605, y -> -(1/1606),
  z -> -(1606/1605)}, {x -> 8865, y -> -(1/8866),
  z -> -(8866/8865)}, {x -> -(1457/1667), y -> -(1667/210),
  z -> 210/1457}, {x -> -(3991/5001), y -> -(5001/1010),
  z -> 1010/3991}, {x -> -(2422/5001), y -> -(5001/2579),
  z -> 2579/2422}, {x -> -5372, y -> 1/5371,
  z -> -(5371/5372)}, {x -> -(113/5001), y -> -(5001/4888),
  z -> 4888/113}, {x -> -(7949/10002), y -> -(10002/2053),
  z -> 2053/7949}, {x -> -(893/5001), y -> -(5001/4108),
  z -> 4108/893}, {x -> -9981, y -> 1/9980,
  z -> -(9980/9981)}, {x -> -1136, y -> 1/1135,
  z -> -(1135/1136)}, {x -> -4269, y -> 1/4268,
  z -> -(4268/4269)}, {x -> 2015, y -> -(1/2016),
  z -> -(2016/2015)}, {x -> -3587, y -> 1/3586,
  z -> -(3586/3587)}, {x -> -(1423/5001), y -> -(5001/3578),
  z -> 3578/1423}, {x -> -(2135/10002), y -> -(10002/7867),
  z -> 7867/2135}, {x -> -4795, y -> 1/4794,
  z -> -(4794/4795)}, {x -> -(3946/5001), y -> -(5001/1055),
  z -> 1055/3946}, {x -> -(2761/5001), y -> -(5001/2240),
  z -> 2240/2761}, {x -> -(1901/5001), y -> -(5001/3100),
  z -> 3100/1901}, {x -> 7228, y -> -(1/7229),
  z -> -(7229/7228)}, {x -> -2431, y -> 1/2430,
  z -> -(2430/2431)}, {x -> -(489/1667), y -> -(1667/1178),
  z -> 1178/489}, {x -> -(7021/10002), y -> -(10002/2981),
  z -> 2981/7021}, {x -> -1413, y -> 1/1412,
  z -> -(1412/1413)}, {x -> -(2090/5001), y -> -(5001/2911),
  z -> 2911/2090}, {x -> 1041, y -> -(1/1042),
  z -> -(1042/1041)}, {x -> -(2671/3334), y -> -(3334/663),
  z -> 663/2671}, {x -> 9561, y -> -(1/9562),
  z -> -(9562/9561)}, {x -> 9458, y -> -(1/9459),
  z -> -(9459/9458)}, {x -> -188, y -> 1/187,
  z -> -(187/188)}, {x -> -2658, y -> 1/2657,
  z -> -(2657/2658)}, {x -> 2014, y -> -(1/2015),
  z -> -(2015/2014)}, {x -> 8477, y -> -(1/8478),
  z -> -(8478/8477)}, {x -> -6491, y -> 1/6490,
  z -> -(6490/6491)}, {x -> -2633, y -> 1/2632,
  z -> -(2632/2633)}, {x -> -5836, y -> 1/5835,
  z -> -(5835/5836)}, {x -> -5822, y -> 1/5821,
  z -> -(5821/5822)}, {x -> -(6427/10002), y -> -(10002/3575),
  z -> 3575/6427}, {x -> -671, y -> 1/670,
  z -> -(670/671)}, {x -> 1761, y -> -(1/1762),
  z -> -(1762/1761)}, {x -> 6228, y -> -(1/6229),
  z -> -(6229/6228)}, {x -> -5397, y -> 1/5396,
  z -> -(5396/5397)}, {x -> -191, y -> 1/190,
  z -> -(190/191)}, {x -> -(4235/10002), y -> -(10002/5767),
  z -> 5767/4235}, {x -> 7467, y -> -(1/7468),
  z -> -(7468/7467)}, {x -> -7228, y -> 1/7227,
  z -> -(7227/7228)}, {x -> -5515, y -> 1/5514,
  z -> -(5514/5515)}, {x -> 3703, y -> -(1/3704),
  z -> -(3704/3703)}, {x -> 4663, y -> -(1/4664),
  z -> -(4664/4663)}, {x -> -(9941/10002), y -> -(10002/61),
  z -> 61/9941}, {x -> -4319, y -> 1/4318,
  z -> -(4318/4319)}, {x -> -9316, y -> 1/9315,
  z -> -(9315/9316)}, {x -> 7160, y -> -(1/7161),
  z -> -(7161/7160)}, {x -> 3059, y -> -(1/3060),
  z -> -(3060/3059)}, {x -> 2269, y -> -(1/2270),
  z -> -(2270/2269)}, {x -> -3399, y -> 1/3398,
  z -> -(3398/3399)}, {x -> 6726, y -> -(1/6727), z -> -(6727/6726)}}

So

Find all the triplets of distinct real numbers (x,y,z) for which:

will be difficult to do in a post. I could write the x,y relationships that would.

#12 Dark Discussions at Cafe Infinity » Gators hiking? » Yesterday 04:12:43

bobbym
Replies: 0

Hi;

https://www.youtube.com/watch?v=FWS5xfIaoeA

Look at him go! Now Lakeland is only 89 miles away from me... Could be the match of the century if that big fat out of shape monster wanders into my territory... Him with huge jaws, sharp claws and the strongest bite grip in nature and me with a napkin, plate and knife and fork. Ain't eatin any gator meat yet but I do not mind trying some. Bet he tastes just like chicken. Anyway, did you notice those imbeciles hiking along completely unaware that Godzilla ain't in Tokyo like those cheap movies conspire to make us believe. He lives right here in Florida enjoying the warm sun and an occasional imbecile strolling by with a camera.

You see the problem is in words like park. To a yank like myself, a park is a place with a couple of picnic tables, restrooms and water fountains. A place where Daddy can take his kids to see the ducks on the small pond in the center. Down here it has a totally different meaning. First time we got caught in what these people call a park we almost died.

VTciwll.jpg

Here parks have rattlers, cottonmouths, bears, feral pigs, cougars, panthers, boa constrictors, pythons and of course gators and crocs. To go into a park here you carry survival gear, you do not go around in shorts and sandals. Not unless you want to be part of the local food chain.

They use the word protected in the news report perhaps to imply that those happy meals on two legs were perfectly safe. Sorry folks, the truth is the gators are protected by federal law, the dummies ain't.

And of course the news got it all wrong again. When we were in Myakka we saw a gator at least that big and not so out of shape. That size is not amazing, it is more common than they want anyone to know.

#13 Re: Help Me ! » Need help with these equations » Yesterday 03:23:49

Hi;

You will need a bit more to get a solution. Is there a constraint you left out?

#14 Re: Help Me ! » Word Problems: Multiplying Fractions » 2017-01-16 12:20:55

Hi;

You can divide by 2 or multiply by 1 / 2. Welcome to the forum.

#15 Re: Introductions » Hi » 2017-01-16 12:19:16

Hi;

Welcome to the forum.

#17 Re: Exercises » New Years Problem » 2017-01-16 02:44:53

That would be a piece of luck. M exposes all my weaknesses.

#18 Re: Help Me ! » Combinatorics question about brackets » 2017-01-15 12:59:03

Hi;

Thanks for the link. I understand how you want to count them say for ()()(). But what is the question you are asking?

I do see the formula you are conjecturing on page 5 of that pdf.

#19 Re: Help Me ! » Combinatorics question about brackets » 2017-01-15 12:40:23

Hi;

I think I understand the problem now. I have notes on this bracketing problem somewhere. I am looking for them now.

#20 Re: Help Me ! » Combinatorics question about brackets » 2017-01-15 12:07:57

Hi;

I do not understand about R(t), L(t), can you explain further.

The numbers you are suggesting are every other Catalan number.

#21 Re: Help Me ! » Find all the n numbers » 2017-01-15 06:52:48

Hi;

The solutions found in post #10 are correct but I am afraid their might be more that ht method I used there is missing. I hate using reasoning in math, that is why I dislike and mistrust the whole concept of proof. Trouble is, computation although more reliable can leave you hanging.

#22 Re: Exercises » Bafflers? » 2017-01-14 15:53:00

It is very desirable to get an analytic form. Can you do that, with the same rules still applying?

#23 Re: Puzzles and Games » Next number in sequence! » 2017-01-14 10:42:10

Hi chamywak;

The number they want next is

.

Welcome to the forum.

#24 Re: Help Me ! » Find all the n numbers » 2017-01-14 10:26:23

Those were just thoughts, that might have a big hole in it.

#25 Re: Exercises » New Years Problem » 2017-01-14 02:54:06

There is undoubtedly a much shorter way to do this.

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