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**scientia****Member**- Registered: 2009-11-13
- Posts: 224

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**bobbym****Administrator**- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 103,751

Thanks.

scientia potentia est

**In mathematics, you don't understand things. You just get used to them.****If it ain't broke, fix it until it is.** **A number by itself is useful, but it is far more useful to know how accurate or certain that number is.**

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**bobbym****Administrator**- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 103,751

Hello Jane;

I was working on something else when I remembered this question.

#6 an oldie but goody.

**In mathematics, you don't understand things. You just get used to them.****If it ain't broke, fix it until it is.** **A number by itself is useful, but it is far more useful to know how accurate or certain that number is.**

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**JaneFairfax****Member**- Registered: 2007-02-23
- Posts: 6,868

bobbym wrote:

OMG! Its been such a while since I posted the problem that Ive forgotten the solution myself!

Ive glanced through your solutions, and I dont think they look right. Give me some time to remember the solution.

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**bobbym****Administrator**- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 103,751

Hi Jane;

So good to see you!

A crazy man wrote:

As usual the clever attempt is wrong. You see math and cleverness just don't go together.

Yes, one is quite wrong, or maybe both!

One is so clever

One is straight out of the book

Omnipresent traps

**In mathematics, you don't understand things. You just get used to them.****If it ain't broke, fix it until it is.** **A number by itself is useful, but it is far more useful to know how accurate or certain that number is.**

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**JaneFairfax****Member**- Registered: 2007-02-23
- Posts: 6,868

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**bobbym****Administrator**- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 103,751

**In mathematics, you don't understand things. You just get used to them.****If it ain't broke, fix it until it is.**

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**JaneFairfax****Member**- Registered: 2007-02-23
- Posts: 6,868

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**bobbym****Administrator**- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 103,751

Hi Jane;

**In mathematics, you don't understand things. You just get used to them.****If it ain't broke, fix it until it is.**

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**JaneFairfax****Member**- Registered: 2007-02-23
- Posts: 6,868

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**bobbym****Administrator**- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 103,751

Hi Jane;

**In mathematics, you don't understand things. You just get used to them.****If it ain't broke, fix it until it is.**

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**scientia****Member**- Registered: 2009-11-13
- Posts: 224

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**JaneFairfax****Member**- Registered: 2007-02-23
- Posts: 6,868

I forgot about #6. Thanks, scientia.

Next question is on algebraic topology.

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