Discussion about math, puzzles, games and fun.   Useful symbols: ÷ × ½ √ ∞ ≠ ≤ ≥ ≈ ⇒ ± ∈ Δ θ ∴ ∑ ∫ • π ƒ -¹ ² ³ °

You are not logged in.

## #1 2012-03-24 09:33:41

anonimnystefy
Real Member

Offline

### Crazy Fractions!!!

Hi guys

As some of you suggested i am posting this problem here.

So,here's the problem:

How many numbers

are there such that:

?

Last edited by anonimnystefy (2012-03-24 09:46:33)

The limit operator is just an excuse for doing something you know you can't.
“It's the subject that nobody knows anything about that we can all talk about!” ― Richard Feynman
“A secret's worth depends on the people from whom it must be kept.” ― Carlos Ruiz Zafón

## #2 2012-03-24 09:36:20

bobbym
Administrator

Online

### Re: Crazy Fractions!!!

Hi;

I am going to be the first to conjecture an infinite amount. Here are 30

In mathematics, you don't understand things. You just get used to them.
90% of mathematicians do not understand 90% of currently published mathematics.
I am willing to wager that over 75% of the new words that appeared were nothing more than spelling errors that caught on.

## #3 2012-03-24 09:48:02

anonimnystefy
Real Member

Offline

### Re: Crazy Fractions!!!

Can you prove your conjecture?

The limit operator is just an excuse for doing something you know you can't.
“It's the subject that nobody knows anything about that we can all talk about!” ― Richard Feynman
“A secret's worth depends on the people from whom it must be kept.” ― Carlos Ruiz Zafón

## #4 2012-03-24 09:53:00

bobbym
Administrator

Online

### Re: Crazy Fractions!!!

That might be very difficult or impossible to do. I do not know yet.

In mathematics, you don't understand things. You just get used to them.
90% of mathematicians do not understand 90% of currently published mathematics.
I am willing to wager that over 75% of the new words that appeared were nothing more than spelling errors that caught on.

## #5 2012-03-24 10:00:04

anonimnystefy
Real Member

Offline

### Re: Crazy Fractions!!!

It may even be false.

The limit operator is just an excuse for doing something you know you can't.
“It's the subject that nobody knows anything about that we can all talk about!” ― Richard Feynman
“A secret's worth depends on the people from whom it must be kept.” ― Carlos Ruiz Zafón

## #6 2012-03-24 10:06:42

anonimnystefy
Real Member

Offline

### Re: Crazy Fractions!!!

I found that the equation above is equivalent to:

There seem to be no solutions with the given restrictions .

Last edited by anonimnystefy (2012-03-24 10:18:26)

The limit operator is just an excuse for doing something you know you can't.
“It's the subject that nobody knows anything about that we can all talk about!” ― Richard Feynman
“A secret's worth depends on the people from whom it must be kept.” ― Carlos Ruiz Zafón

## #7 2012-03-24 10:45:51

bobbym
Administrator

Online

### Re: Crazy Fractions!!!

I  posted 30 solutions and there are more.

In mathematics, you don't understand things. You just get used to them.
90% of mathematicians do not understand 90% of currently published mathematics.
I am willing to wager that over 75% of the new words that appeared were nothing more than spelling errors that caught on.

## #8 2012-03-24 11:15:39

anonimnystefy
Real Member

Offline

### Re: Crazy Fractions!!!

I checked the first of them and it's not correct.The same probably goes for the other ones as well.

The limit operator is just an excuse for doing something you know you can't.
“It's the subject that nobody knows anything about that we can all talk about!” ― Richard Feynman
“A secret's worth depends on the people from whom it must be kept.” ― Carlos Ruiz Zafón

## #9 2012-03-24 11:59:11

anonimnystefy
Real Member

Offline

### Re: Crazy Fractions!!!

Read the problem again.

The limit operator is just an excuse for doing something you know you can't.
“It's the subject that nobody knows anything about that we can all talk about!” ― Richard Feynman
“A secret's worth depends on the people from whom it must be kept.” ― Carlos Ruiz Zafón

## #10 2012-03-24 12:08:01

bobbym
Administrator

Online

### Re: Crazy Fractions!!!

You changed the problem! It is different in the other thread!

This one is trivial. Of course there is no solutions.

In mathematics, you don't understand things. You just get used to them.
90% of mathematicians do not understand 90% of currently published mathematics.
I am willing to wager that over 75% of the new words that appeared were nothing more than spelling errors that caught on.

## #11 2012-03-24 12:25:38

anonimnystefy
Real Member

Offline

### Re: Crazy Fractions!!!

Hi bobbym

I posted incorrectly over there.

The limit operator is just an excuse for doing something you know you can't.
“It's the subject that nobody knows anything about that we can all talk about!” ― Richard Feynman
“A secret's worth depends on the people from whom it must be kept.” ― Carlos Ruiz Zafón

## #12 2012-03-24 12:36:23

bobbym
Administrator

Online

### Re: Crazy Fractions!!!

Okay, no problem. Do you see why there are no solutions?

In mathematics, you don't understand things. You just get used to them.
90% of mathematicians do not understand 90% of currently published mathematics.
I am willing to wager that over 75% of the new words that appeared were nothing more than spelling errors that caught on.

## #13 2012-03-24 13:45:26

anonimnystefy
Real Member

Offline

### Re: Crazy Fractions!!!

Yes.

The limit operator is just an excuse for doing something you know you can't.
“It's the subject that nobody knows anything about that we can all talk about!” ― Richard Feynman
“A secret's worth depends on the people from whom it must be kept.” ― Carlos Ruiz Zafón

## #14 2012-03-26 05:57:07

anonimnystefy
Real Member

Offline

### Re: Crazy Fractions!!!

hi bobbym

i know this is not the appropriate thread,but could you tell me some uses of the Markov chains?

The limit operator is just an excuse for doing something you know you can't.
“It's the subject that nobody knows anything about that we can all talk about!” ― Richard Feynman
“A secret's worth depends on the people from whom it must be kept.” ― Carlos Ruiz Zafón

## #15 2012-03-26 06:00:29

bobbym
Administrator

Online

### Re: Crazy Fractions!!!

They solve probability problems mostly. I show by example and leave the theorems to guys who hate numbers.

In mathematics, you don't understand things. You just get used to them.
90% of mathematicians do not understand 90% of currently published mathematics.
I am willing to wager that over 75% of the new words that appeared were nothing more than spelling errors that caught on.

## #16 2012-03-26 06:06:41

anonimnystefy
Real Member

Offline

### Re: Crazy Fractions!!!

then show me an example.it will be more helpful.

The limit operator is just an excuse for doing something you know you can't.
“It's the subject that nobody knows anything about that we can all talk about!” ― Richard Feynman
“A secret's worth depends on the people from whom it must be kept.” ― Carlos Ruiz Zafón

## #17 2012-03-26 06:07:50

bobbym
Administrator

Online

### Re: Crazy Fractions!!!

Uhhh, do you know what show by example means?

In mathematics, you don't understand things. You just get used to them.
90% of mathematicians do not understand 90% of currently published mathematics.
I am willing to wager that over 75% of the new words that appeared were nothing more than spelling errors that caught on.

## #18 2012-03-26 06:10:46

anonimnystefy
Real Member

Offline

### Re: Crazy Fractions!!!

i thought you meant an example by solving a theoretical problem.

The limit operator is just an excuse for doing something you know you can't.
“It's the subject that nobody knows anything about that we can all talk about!” ― Richard Feynman
“A secret's worth depends on the people from whom it must be kept.” ― Carlos Ruiz Zafón

## #19 2012-03-26 06:11:40

bobbym
Administrator

Online

### Re: Crazy Fractions!!!

Nope, they are solved by computation. Do you have access to some computational engine?

In mathematics, you don't understand things. You just get used to them.
90% of mathematicians do not understand 90% of currently published mathematics.
I am willing to wager that over 75% of the new words that appeared were nothing more than spelling errors that caught on.

## #20 2012-03-26 06:18:30

anonimnystefy
Real Member

Offline

### Re: Crazy Fractions!!!

like what?

The limit operator is just an excuse for doing something you know you can't.
“It's the subject that nobody knows anything about that we can all talk about!” ― Richard Feynman
“A secret's worth depends on the people from whom it must be kept.” ― Carlos Ruiz Zafón

## #21 2012-03-26 06:19:31

bobbym
Administrator

Online

### Re: Crazy Fractions!!!

Maple, mathematica, maxima, axiom, derive, sage...

In mathematics, you don't understand things. You just get used to them.
90% of mathematicians do not understand 90% of currently published mathematics.
I am willing to wager that over 75% of the new words that appeared were nothing more than spelling errors that caught on.

## #22 2012-03-26 06:26:05

anonimnystefy
Real Member

Offline

### Re: Crazy Fractions!!!

nothing on my desktop.

The limit operator is just an excuse for doing something you know you can't.
“It's the subject that nobody knows anything about that we can all talk about!” ― Richard Feynman
“A secret's worth depends on the people from whom it must be kept.” ― Carlos Ruiz Zafón

## #23 2012-03-26 06:27:56

bobbym
Administrator

Online

### Re: Crazy Fractions!!!

Not even geogebra!

In mathematics, you don't understand things. You just get used to them.
90% of mathematicians do not understand 90% of currently published mathematics.
I am willing to wager that over 75% of the new words that appeared were nothing more than spelling errors that caught on.

## #24 2012-03-26 06:30:33

anonimnystefy
Real Member

Offline

### Re: Crazy Fractions!!!

actually i have 'Geogebra Prim'

The limit operator is just an excuse for doing something you know you can't.
“It's the subject that nobody knows anything about that we can all talk about!” ― Richard Feynman
“A secret's worth depends on the people from whom it must be kept.” ― Carlos Ruiz Zafón

## #25 2012-03-26 06:32:06

bobbym
Administrator

Online

### Re: Crazy Fractions!!!

GeoGebraPrim.exe? Do you have the one with maxima inside as I suggested to you a zillion years ago.

In mathematics, you don't understand things. You just get used to them.
90% of mathematicians do not understand 90% of currently published mathematics.
I am willing to wager that over 75% of the new words that appeared were nothing more than spelling errors that caught on.

## Board footer

Powered by FluxBB