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

You are not logged in.

#1 2011-08-04 03:06:21

anonimnystefy
Real Member
From: The Foundation
Registered: 2011-05-23
Posts: 15,194

Sequences!

I have been waiting for a long time to open this topic.

i have some questions about these but all in good time.first step is to open up the topic.

so here you can post anything useful,interesting,helpful about sequences,any problem involving the same.


“Here lies the reader who will never open this book. He is forever dead.

“Taking a new step, uttering a new word, is what people fear most.” ― Fyodor Dostoyevsky, Crime and Punishment

Online

#2 2011-08-04 03:59:33

gAr
Member
Registered: 2011-01-09
Posts: 3,478

Re: Sequences!

Hi,

To keep yourself entertained for a few minutes : http://oeis.org/Spuzzle.html

You said you have questions?


"Believe nothing, no matter where you read it, or who said it, no matter if I have said it, unless it agrees with your own reason and your own common sense"  - Buddha?

"Data! Data! Data!" he cried impatiently. "I can't make bricks without clay."

Offline

#3 2011-08-04 04:10:36

anonimnystefy
Real Member
From: The Foundation
Registered: 2011-05-23
Posts: 15,194

Re: Sequences!

the frist one is easy:
.1,+1,.2,+2,.3,+3,...


“Here lies the reader who will never open this book. He is forever dead.

“Taking a new step, uttering a new word, is what people fear most.” ― Fyodor Dostoyevsky, Crime and Punishment

Online

#4 2011-08-04 04:13:05

gAr
Member
Registered: 2011-01-09
Posts: 3,478

Re: Sequences!

Finding next three terms?
That would be .4, +4, .5, +5 ...

Last edited by gAr (2011-08-04 04:15:22)


"Believe nothing, no matter where you read it, or who said it, no matter if I have said it, unless it agrees with your own reason and your own common sense"  - Buddha?

"Data! Data! Data!" he cried impatiently. "I can't make bricks without clay."

Offline

#5 2011-08-04 04:17:04

anonimnystefy
Real Member
From: The Foundation
Registered: 2011-05-23
Posts: 15,194

Re: Sequences!

yup


“Here lies the reader who will never open this book. He is forever dead.

“Taking a new step, uttering a new word, is what people fear most.” ― Fyodor Dostoyevsky, Crime and Punishment

Online

#6 2011-08-04 04:18:17

anonimnystefy
Real Member
From: The Foundation
Registered: 2011-05-23
Posts: 15,194

Re: Sequences!

the roman one was amazing never woulda guessed.

there is also the read and write one.


“Here lies the reader who will never open this book. He is forever dead.

“Taking a new step, uttering a new word, is what people fear most.” ― Fyodor Dostoyevsky, Crime and Punishment

Online

#7 2011-08-04 04:20:10

anonimnystefy
Real Member
From: The Foundation
Registered: 2011-05-23
Posts: 15,194

Re: Sequences!

the US elevator was funny.


“Here lies the reader who will never open this book. He is forever dead.

“Taking a new step, uttering a new word, is what people fear most.” ― Fyodor Dostoyevsky, Crime and Punishment

Online

#8 2011-08-04 04:23:46

gAr
Member
Registered: 2011-01-09
Posts: 3,478

Re: Sequences!

Okay, I have answered in my previous post.

Are you trying it or going through the answers?! I'm still on the first one.


"Believe nothing, no matter where you read it, or who said it, no matter if I have said it, unless it agrees with your own reason and your own common sense"  - Buddha?

"Data! Data! Data!" he cried impatiently. "I can't make bricks without clay."

Offline

#9 2011-08-04 04:27:16

anonimnystefy
Real Member
From: The Foundation
Registered: 2011-05-23
Posts: 15,194

Re: Sequences!

no no i try them of course.what are you doing on the first one?


“Here lies the reader who will never open this book. He is forever dead.

“Taking a new step, uttering a new word, is what people fear most.” ― Fyodor Dostoyevsky, Crime and Punishment

Online

#10 2011-08-04 04:33:36

gAr
Member
Registered: 2011-01-09
Posts: 3,478

Re: Sequences!

Okay, I know you would try.

I was talking about the first puzzle in that page.

I have answered your question, I repeat here:  .4, +4, .5, +5 ...


"Believe nothing, no matter where you read it, or who said it, no matter if I have said it, unless it agrees with your own reason and your own common sense"  - Buddha?

"Data! Data! Data!" he cried impatiently. "I can't make bricks without clay."

Offline

#11 2011-08-04 04:40:27

anonimnystefy
Real Member
From: The Foundation
Registered: 2011-05-23
Posts: 15,194

Re: Sequences!

no no i said that that is the answer to the first one.times 1 plus 1,times 2,plus 2,...


“Here lies the reader who will never open this book. He is forever dead.

“Taking a new step, uttering a new word, is what people fear most.” ― Fyodor Dostoyevsky, Crime and Punishment

Online

#12 2011-08-04 04:58:59

gAr
Member
Registered: 2011-01-09
Posts: 3,478

Re: Sequences!

Ugh, I thought that was your first question on sequences!
Thought that you replied my question.


"Believe nothing, no matter where you read it, or who said it, no matter if I have said it, unless it agrees with your own reason and your own common sense"  - Buddha?

"Data! Data! Data!" he cried impatiently. "I can't make bricks without clay."

Offline

#13 2011-08-04 05:07:33

anonimnystefy
Real Member
From: The Foundation
Registered: 2011-05-23
Posts: 15,194

Re: Sequences!

i am sorry about the missunderstanding...:)


“Here lies the reader who will never open this book. He is forever dead.

“Taking a new step, uttering a new word, is what people fear most.” ― Fyodor Dostoyevsky, Crime and Punishment

Online

#14 2011-08-04 05:19:08

gAr
Member
Registered: 2011-01-09
Posts: 3,478

Re: Sequences!

Not a problem!


"Believe nothing, no matter where you read it, or who said it, no matter if I have said it, unless it agrees with your own reason and your own common sense"  - Buddha?

"Data! Data! Data!" he cried impatiently. "I can't make bricks without clay."

Offline

#15 2011-08-06 00:43:41

anonimnystefy
Real Member
From: The Foundation
Registered: 2011-05-23
Posts: 15,194

Re: Sequences!

here is one of my problems:

What are ways of getting a general term of a sequence if it exists?


“Here lies the reader who will never open this book. He is forever dead.

“Taking a new step, uttering a new word, is what people fear most.” ― Fyodor Dostoyevsky, Crime and Punishment

Online

#16 2011-08-06 00:49:23

bobbym
Administrator
From: Bumpkinland
Registered: 2009-04-12
Posts: 84,224

Re: Sequences!

Differences is the main way used. But the question is arbitrary. For any sequence there are many general terms.


In mathematics, you don't understand things. You just get used to them.
I have the result, but I do not yet know how to get it.
All physicists, and a good many quite respectable mathematicians are contemptuous about proof.

Online

#17 2011-08-06 01:00:54

anonimnystefy
Real Member
From: The Foundation
Registered: 2011-05-23
Posts: 15,194

Re: Sequences!

is there any other way

what about for example:

Last edited by anonimnystefy (2011-08-06 01:01:28)


“Here lies the reader who will never open this book. He is forever dead.

“Taking a new step, uttering a new word, is what people fear most.” ― Fyodor Dostoyevsky, Crime and Punishment

Online

#18 2011-08-06 01:15:16

gAr
Member
Registered: 2011-01-09
Posts: 3,478

Re: Sequences!

Hi,

You can't find a closed-form for that, but you can find


"Believe nothing, no matter where you read it, or who said it, no matter if I have said it, unless it agrees with your own reason and your own common sense"  - Buddha?

"Data! Data! Data!" he cried impatiently. "I can't make bricks without clay."

Offline

#19 2011-08-06 01:26:25

bobbym
Administrator
From: Bumpkinland
Registered: 2009-04-12
Posts: 84,224

Re: Sequences!

Hi anonimnystefy;

Where did you get that from?


In mathematics, you don't understand things. You just get used to them.
I have the result, but I do not yet know how to get it.
All physicists, and a good many quite respectable mathematicians are contemptuous about proof.

Online

#20 2011-08-06 01:56:08

anonimnystefy
Real Member
From: The Foundation
Registered: 2011-05-23
Posts: 15,194

Re: Sequences!

the same place i got most of my problems.the math magazine.


“Here lies the reader who will never open this book. He is forever dead.

“Taking a new step, uttering a new word, is what people fear most.” ― Fyodor Dostoyevsky, Crime and Punishment

Online

#21 2011-08-06 01:58:29

bobbym
Administrator
From: Bumpkinland
Registered: 2009-04-12
Posts: 84,224

Re: Sequences!

The journal, Mathematics magazine?


In mathematics, you don't understand things. You just get used to them.
I have the result, but I do not yet know how to get it.
All physicists, and a good many quite respectable mathematicians are contemptuous about proof.

Online

#22 2011-08-06 02:32:07

anonimnystefy
Real Member
From: The Foundation
Registered: 2011-05-23
Posts: 15,194

Re: Sequences!

no.it is something we get at school.it is called 'Tangent',not in english.


“Here lies the reader who will never open this book. He is forever dead.

“Taking a new step, uttering a new word, is what people fear most.” ― Fyodor Dostoyevsky, Crime and Punishment

Online

#23 2011-08-06 02:36:25

bobbym
Administrator
From: Bumpkinland
Registered: 2009-04-12
Posts: 84,224

Re: Sequences!

Hi;

And the question in the magazine wants a general term for that sequence? Or do you?


In mathematics, you don't understand things. You just get used to them.
I have the result, but I do not yet know how to get it.
All physicists, and a good many quite respectable mathematicians are contemptuous about proof.

Online

#24 2011-08-06 03:35:43

anonimnystefy
Real Member
From: The Foundation
Registered: 2011-05-23
Posts: 15,194

Re: Sequences!

(do you take {put your name here} present here to be your lawfully wedded wife?) i do.


“Here lies the reader who will never open this book. He is forever dead.

“Taking a new step, uttering a new word, is what people fear most.” ― Fyodor Dostoyevsky, Crime and Punishment

Online

#25 2011-08-06 03:44:43

bobbym
Administrator
From: Bumpkinland
Registered: 2009-04-12
Posts: 84,224

Re: Sequences!

Hi;

I am afraid gAr is right I am unable to find a general term for that sequence. I think that is because it converges.


In mathematics, you don't understand things. You just get used to them.
I have the result, but I do not yet know how to get it.
All physicists, and a good many quite respectable mathematicians are contemptuous about proof.

Online

Board footer

Powered by FluxBB