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.

#276 2012-12-08 21:29:57

Agnishom
Real Member
From: The Complex Plane
Registered: 2011-01-29
Posts: 15,372
Website

Re: help me

I like them very much. However, I am asking whether the book would help me to solve them


'And fun? If maths is fun, then getting a tooth extraction is fun. A viral infection is fun. Rabies shots are fun.'
'God exists because Mathematics is consistent, and the devil exists because we cannot prove it'
'Humanity is still kept intact. It remains within.' -Alokananda

Offline

#277 2012-12-08 21:34:07

bobbym
Administrator
From: Bumpkinland
Registered: 2009-04-12
Posts: 83,249

Re: help me

Hi Agnishom;

The best way to learn anything is to solve problems. Dry lectures you will forget within a week, but a solved problem shows you how.


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.

Offline

#278 2012-12-08 21:42:59

Agnishom
Real Member
From: The Complex Plane
Registered: 2011-01-29
Posts: 15,372
Website

Re: help me

Hmm...


'And fun? If maths is fun, then getting a tooth extraction is fun. A viral infection is fun. Rabies shots are fun.'
'God exists because Mathematics is consistent, and the devil exists because we cannot prove it'
'Humanity is still kept intact. It remains within.' -Alokananda

Offline

#279 2012-12-08 22:14:07

bobbym
Administrator
From: Bumpkinland
Registered: 2009-04-12
Posts: 83,249

Re: help me

It is how gAr, anonimnystefy and I work.


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.

Offline

#280 2012-12-08 22:37:47

anonimnystefy
Real Member
From: The Foundation
Registered: 2011-05-23
Posts: 14,886

Re: help me

You can take a look at the "Oh, oh, oh, merry analsis", "Expectation", " Generating functions!", and many more. Many of them started because I (but not only I) wanted to learn about knew topics. You will find that all of those threads consist only of problems and nothing but problems.


“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

Offline

#281 2012-12-08 22:47:31

Agnishom
Real Member
From: The Complex Plane
Registered: 2011-01-29
Posts: 15,372
Website

Re: help me

What are these?


'And fun? If maths is fun, then getting a tooth extraction is fun. A viral infection is fun. Rabies shots are fun.'
'God exists because Mathematics is consistent, and the devil exists because we cannot prove it'
'Humanity is still kept intact. It remains within.' -Alokananda

Offline

#282 2012-12-08 22:48:44

anonimnystefy
Real Member
From: The Foundation
Registered: 2011-05-23
Posts: 14,886

Re: help me

Various threads here on the forum.


“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

Offline

#283 2012-12-08 22:50:16

Agnishom
Real Member
From: The Complex Plane
Registered: 2011-01-29
Posts: 15,372
Website

Re: help me

Oh! I forgot tongue


'And fun? If maths is fun, then getting a tooth extraction is fun. A viral infection is fun. Rabies shots are fun.'
'God exists because Mathematics is consistent, and the devil exists because we cannot prove it'
'Humanity is still kept intact. It remains within.' -Alokananda

Offline

#284 2012-12-08 22:56:30

Agnishom
Real Member
From: The Complex Plane
Registered: 2011-01-29
Posts: 15,372
Website

Re: help me

What does the big O notation signify?


'And fun? If maths is fun, then getting a tooth extraction is fun. A viral infection is fun. Rabies shots are fun.'
'God exists because Mathematics is consistent, and the devil exists because we cannot prove it'
'Humanity is still kept intact. It remains within.' -Alokananda

Offline

#285 2012-12-08 22:58:03

bobbym
Administrator
From: Bumpkinland
Registered: 2009-04-12
Posts: 83,249

Re: help me

Hi Agnishom;

There are many of these threads filled with good problems.


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.

Offline

#286 2012-12-08 23:01:34

Agnishom
Real Member
From: The Complex Plane
Registered: 2011-01-29
Posts: 15,372
Website

Re: help me

Hmm.. smile

But what is the meaning of the big O?


'And fun? If maths is fun, then getting a tooth extraction is fun. A viral infection is fun. Rabies shots are fun.'
'God exists because Mathematics is consistent, and the devil exists because we cannot prove it'
'Humanity is still kept intact. It remains within.' -Alokananda

Offline

#287 2012-12-08 23:16:04

bobbym
Administrator
From: Bumpkinland
Registered: 2009-04-12
Posts: 83,249

Re: help me

Hi;

The Big O notation is used to describe the limit of an algorithms performance as it approaches infinity or some other value.

wikipedia wrote:

big O notation is used to classify algorithms by how they respond (e.g., in their processing time or working space requirements) to changes in input size.


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.

Offline

#288 2012-12-09 01:01:30

Agnishom
Real Member
From: The Complex Plane
Registered: 2011-01-29
Posts: 15,372
Website

Re: help me

Any example of it?


'And fun? If maths is fun, then getting a tooth extraction is fun. A viral infection is fun. Rabies shots are fun.'
'God exists because Mathematics is consistent, and the devil exists because we cannot prove it'
'Humanity is still kept intact. It remains within.' -Alokananda

Offline

#289 2012-12-09 02:08:53

bobbym
Administrator
From: Bumpkinland
Registered: 2009-04-12
Posts: 83,249

Re: help me

This is very simple and very watered down.

Supposing you wanted to add two two digit numbers. It would take you 2 additions to do it. If you had two four digit numbers it would take 4 additions. Notice as n ( the number of digits doubled the amount of work required also doubled. 4 additions to 2.)

We say that algorithm is linear and assign it O(n).

Now how about multiplication the way you were taught?


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.

Offline

#290 2012-12-09 02:33:43

Agnishom
Real Member
From: The Complex Plane
Registered: 2011-01-29
Posts: 15,372
Website

Re: help me

I think multiplication should be linear too


'And fun? If maths is fun, then getting a tooth extraction is fun. A viral infection is fun. Rabies shots are fun.'
'God exists because Mathematics is consistent, and the devil exists because we cannot prove it'
'Humanity is still kept intact. It remains within.' -Alokananda

Offline

#291 2012-12-09 02:39:13

bobbym
Administrator
From: Bumpkinland
Registered: 2009-04-12
Posts: 83,249

Re: help me

Hi;

When you multiply two two digit numbers it takes 4 multiplications. When you two 4 digit numbers it takes 16 multiplications rather than the expected 8. When we triple the amout of digits 6 x 6 it takes 36 multiplications.
n
2 digits = 4 mults
4 digits = 16 mults
6 digits = 36 digits.

You can see that the relationship is n^2. We say that the operation of schoolboy multiplication is O(n^2).


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.

Offline

#292 2012-12-09 03:38:35

mathgogocart
Member
Registered: 2012-04-29
Posts: 1,426

Re: help me

bobbym wrote:

Hi Agnishom;

The best way to learn anything is to solve problems. Dry lectures you will forget within a week, but a solved problem shows you how.

what about a wet lecture? dizzydizzydizzydizzydizzydizzydizzydizzydizzydizzydizzywavewavewavewavewave


Hey.

Offline

#293 2012-12-09 03:54:09

Agnishom
Real Member
From: The Complex Plane
Registered: 2011-01-29
Posts: 15,372
Website

Re: help me

Yes...I see smile

Whats next?

Last edited by Agnishom (2012-12-09 03:55:38)


'And fun? If maths is fun, then getting a tooth extraction is fun. A viral infection is fun. Rabies shots are fun.'
'God exists because Mathematics is consistent, and the devil exists because we cannot prove it'
'Humanity is still kept intact. It remains within.' -Alokananda

Offline

#294 2012-12-09 04:05:54

bobbym
Administrator
From: Bumpkinland
Registered: 2009-04-12
Posts: 83,249

Re: help me

Hi;

Did you check out the thread anonimnystefy mentioned?


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.

Offline

#295 2012-12-09 04:08:55

Agnishom
Real Member
From: The Complex Plane
Registered: 2011-01-29
Posts: 15,372
Website

Re: help me

Yes but I dont understand the problems over there


'And fun? If maths is fun, then getting a tooth extraction is fun. A viral infection is fun. Rabies shots are fun.'
'God exists because Mathematics is consistent, and the devil exists because we cannot prove it'
'Humanity is still kept intact. It remains within.' -Alokananda

Offline

#296 2012-12-09 04:10:22

bobbym
Administrator
From: Bumpkinland
Registered: 2009-04-12
Posts: 83,249

Re: help me

Can you say what is the part you do not understand?


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.

Offline

#297 2012-12-09 04:14:55

Agnishom
Real Member
From: The Complex Plane
Registered: 2011-01-29
Posts: 15,372
Website

Re: help me

Okay but tomorrow sleep Gotta sleep! Good Night!


'And fun? If maths is fun, then getting a tooth extraction is fun. A viral infection is fun. Rabies shots are fun.'
'God exists because Mathematics is consistent, and the devil exists because we cannot prove it'
'Humanity is still kept intact. It remains within.' -Alokananda

Offline

#298 2012-12-09 04:17:24

bobbym
Administrator
From: Bumpkinland
Registered: 2009-04-12
Posts: 83,249

Re: help me

Hi;

Okay, see you tomorrow.


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.

Offline

#299 2012-12-09 10:06:39

Sarah Rebekah 16
Member
Registered: 2012-11-12
Posts: 73

Re: help me

sup guys?


Love is Golden.

Offline

#300 2012-12-09 10:09:59

bob bundy
Moderator
Registered: 2010-06-20
Posts: 6,269

Re: help me

hi Sarah,

How are you today?

Bob


You cannot teach a man anything;  you can only help him find it within himself..........Galileo Galilei

Offline

Board footer

Powered by FluxBB