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

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#276 2012-12-09 20:29:57

Agnishom
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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'
'Who are you to judge everything?' -Alokananda
 

#277 2012-12-09 20:34:07

bobbym
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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.
 

#278 2012-12-09 20:42:59

Agnishom
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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'
'Who are you to judge everything?' -Alokananda
 

#279 2012-12-09 21:14:07

bobbym
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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.
 

#280 2012-12-09 21:37:47

anonimnystefy
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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.


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

#281 2012-12-09 21:47:31

Agnishom
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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'
'Who are you to judge everything?' -Alokananda
 

#282 2012-12-09 21:48:44

anonimnystefy
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Re: help me

Various threads here on the forum.


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

#283 2012-12-09 21:50:16

Agnishom
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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'
'Who are you to judge everything?' -Alokananda
 

#284 2012-12-09 21:56:30

Agnishom
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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'
'Who are you to judge everything?' -Alokananda
 

#285 2012-12-09 21:58:03

bobbym
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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.
 

#286 2012-12-09 22:01:34

Agnishom
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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'
'Who are you to judge everything?' -Alokananda
 

#287 2012-12-09 22:16:04

bobbym
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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.
 

#288 2012-12-10 00:01:30

Agnishom
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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'
'Who are you to judge everything?' -Alokananda
 

#289 2012-12-10 01:08:53

bobbym
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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.
 

#290 2012-12-10 01:33:43

Agnishom
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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'
'Who are you to judge everything?' -Alokananda
 

#291 2012-12-10 01:39:13

bobbym
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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.
 

#292 2012-12-10 02:38:35

mathgogocart
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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.
 

#293 2012-12-10 02:54:09

Agnishom
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Yes...I see smile

Whats next?

Last edited by Agnishom (2012-12-10 02:55:38)


'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'
'Who are you to judge everything?' -Alokananda
 

#294 2012-12-10 03:05:54

bobbym
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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.
 

#295 2012-12-10 03:08:55

Agnishom
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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'
'Who are you to judge everything?' -Alokananda
 

#296 2012-12-10 03:10:22

bobbym
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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.
 

#297 2012-12-10 03:14:55

Agnishom
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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'
'Who are you to judge everything?' -Alokananda
 

#298 2012-12-10 03:17:24

bobbym
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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.
 

#299 2012-12-10 09:06:39

Sarah Rebekah 16
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Re: help me

sup guys?


Love is Golden.
 

#300 2012-12-10 09:09:59

bob bundy
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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
 

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