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

You are not logged in.

- Topics: Active | Unanswered

**zetafunc.****Guest**

You have not finished it?

**bobbym****Administrator**- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 86,705

Nope. It is very tough and weird.

**In mathematics, you don't understand things. You just get used to them.Of course that result can be rigorously obtained, but who cares?Combinatorics is Algebra and Algebra is Combinatorics.**

Offline

**zetafunc.****Guest**

Challenge accepted.

**bobbym****Administrator**- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 86,705

Good luck, if you do you can explain it to me.

**In mathematics, you don't understand things. You just get used to them.Of course that result can be rigorously obtained, but who cares?Combinatorics is Algebra and Algebra is Combinatorics.**

Offline

**anonimnystefy****Real Member**- From: The Foundation
- Registered: 2011-05-23
- Posts: 15,525

I got only to the first fifth of the third chapter, plus the really useful bit on snake oil method.

*Last edited by anonimnystefy (2013-06-09 10:56:12)*

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

**zetafunc.****Guest**

Snake oil method? Well that's a phrase I never thought I'd hear in a mathematical context...!

**bobbym****Administrator**- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 86,705

My brother is a big fan of his snake oil method. There is useful stuff on asymptotics or maybe I am thinking of A=B.

**In mathematics, you don't understand things. You just get used to them.Of course that result can be rigorously obtained, but who cares?Combinatorics is Algebra and Algebra is Combinatorics.**

Offline

**anonimnystefy****Real Member**- From: The Foundation
- Registered: 2011-05-23
- Posts: 15,525

Hi zf.

That part is really easy to understand, and is very useful.

Hi bobbym

Yes, there are asymptotics in both the gfology and A=B. And both talk about the WZ method. It seems cool, but I haven't tried it yet...

*Last edited by anonimnystefy (2013-06-09 11:02:38)*

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

**bobbym****Administrator**- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 86,705

Well that's a phrase I never thought I'd hear in a mathematical context...!

The way an experimental mathematician like Herbie worked is well described by that.

And both talk about the WZ method. It seems cool, but I haven't tried it yet...

That is the meat of their idea.

Of course that result can be rigorously obtained, but who cares?

Combinatorics is Algebra and Algebra is Combinatorics.

Offline

**anonimnystefy****Real Member**- From: The Foundation
- Registered: 2011-05-23
- Posts: 15,525

Hi bobbym

For A=B I'm sure it is. Not as much for gfology.

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

**bobbym****Administrator**- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 86,705

The definitively good book on gf's has not been written yet. After the Tucker book you have to scrounge around for additional ideas.

Of course that result can be rigorously obtained, but who cares?

Combinatorics is Algebra and Algebra is Combinatorics.

Offline

**zetafunc.****Guest**

Phew, 2 exams down, 7 to go...

There are huge complaints about the C3 exam (a pure maths exam over here) because it was leaked, but I don't think the amount of complaining is justifiable...

**bobbym****Administrator**- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 86,705

How did you do?

Because it was leaked?

Of course that result can be rigorously obtained, but who cares?

Combinatorics is Algebra and Algebra is Combinatorics.

Offline

**zetafunc.****Guest**

I thought I did well, but you never know...

Well, people are making false claims that the paper was unreasonably hard, or contained material not on the syllabus, and over 10,000 people have complained. But Edexcel issued a replacement paper (for emergencies such as these) and had the students sit that one instead. But I feel that there was nothing wrong with the replacement, and people are simply using the fact that the original paper was leaked to as an excuse for their poor performance (and so, they're claiming it was impossible or whatever). Google "Missing exam paper sparks re-sit row" and click the article from BBC News.

Having done the paper (I found a copy online), it just seems like a standard paper with some parts slightly trickier than usual, but I just can't see how the whining is justifiable.

Still, I think it's really stupid that they leak the papers 2 years in a row.

**bobbym****Administrator**- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 86,705

As long as it did not bother you... Let them whine and whine some more.

Of course that result can be rigorously obtained, but who cares?

Combinatorics is Algebra and Algebra is Combinatorics.

Offline

**zetafunc.****Guest**

The whining is irritating though, they are acting like it is the end of the world... with all due respect to them, that is just what happens if you only prepare for an easy paper.

**bobbym****Administrator**- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 86,705

I agree, listening to the crying makes my back hurt even more. There was a guy on another forum crying over the beatings he got when he was 8. He is 50 now and still sobbing. Turns out he got smacked on the knuckles with a thin ruler and he calls that a beating?

Of course that result can be rigorously obtained, but who cares?

Combinatorics is Algebra and Algebra is Combinatorics.

Offline

**zetafunc.****Guest**

Isn't that a bit different? A thin metal ruler could probably cut...

**bobbym****Administrator**- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 86,705

Yes, I am sure he is cut and probably he can not play the piano and wants to sue for 450 million dollars.

I know it is not the same as what you were saying.

Of course that result can be rigorously obtained, but who cares?

Combinatorics is Algebra and Algebra is Combinatorics.

Offline

**zetafunc.****Guest**

I hate to admit it but the education reformists must be loving this...

**bobbym****Administrator**- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 86,705

What do they want to reform? The system? The test? The students? The teachers? The cuisine?

Of course that result can be rigorously obtained, but who cares?

Combinatorics is Algebra and Algebra is Combinatorics.

Offline

**zetafunc.****Guest**

The reforming has already started. Currently, 47% of students here achieve an A in A-level Maths, and there is evidence to suggest that the exams have been getting easier (grade inflation). So Michael Gove, the secretary of state for education, has banned exams from being taken in January, and also wants to stop students from being able to re-sit a paper. He is aiming to do away with the modular system, and lump everything into one final exam at the end of 2 years (like how it used to be).

**bobbym****Administrator**- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 86,705

So he seeks to have less people get an A? This jumping up and down on standards is also unfair. Plenty of people here complain that if they would have taken their tests 3 years ago or 3 years hence they would do much better. This is due to the seesawing of testing. One guy gets in and thinks it is too tough, the next it is too soft.

Of course that result can be rigorously obtained, but who cares?

Combinatorics is Algebra and Algebra is Combinatorics.

Offline

**zetafunc.****Guest**

Yes -- I am in favour of some of his 'reforms' but I am still fundamentally against the implementation, which is the reason he is disliked. We haven't had such big changes in about 30 years -- GCSEs are being replaced now!!

**bobbym****Administrator**- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 86,705

Do you think that system has produced high quality people?

Of course that result can be rigorously obtained, but who cares?

Combinatorics is Algebra and Algebra is Combinatorics.

Offline