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## #26 2012-07-23 10:22:03

bobbym
From: Bumpkinland
Registered: 2009-04-12
Posts: 106,437

### Re: Evaluate this integral

Of course not. Do you honestly think they even read those? I have emailed them many times with no affect.

Ever heard of Bondarenko?

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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## #27 2012-07-23 10:57:49

anonimnystefy
Real Member
From: Harlan's World
Registered: 2011-05-23
Posts: 16,018

### Re: Evaluate this integral

The tennis player?

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
The knowledge of some things as a function of age is a delta function.

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## #28 2012-07-23 11:23:38

bobbym
From: Bumpkinland
Registered: 2009-04-12
Posts: 106,437

### Re: Evaluate this integral

Hohohohohohoohhoosahsf! That is good one.

No the mathematician. He has a tremendous forehand.

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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## #29 2012-07-23 11:32:23

anonimnystefy
Real Member
From: Harlan's World
Registered: 2011-05-23
Posts: 16,018

### Re: Evaluate this integral

Then no.

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
The knowledge of some things as a function of age is a delta function.

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## #30 2012-07-23 12:20:47

bobbym
From: Bumpkinland
Registered: 2009-04-12
Posts: 106,437

### Re: Evaluate this integral

Hmmmm. He is the fly in the ointment so to speak.

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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## #31 2012-07-23 12:24:28

anonimnystefy
Real Member
From: Harlan's World
Registered: 2011-05-23
Posts: 16,018

### Re: Evaluate this integral

Why is that?

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
The knowledge of some things as a function of age is a delta function.

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## #32 2012-07-23 12:29:43

bobbym
From: Bumpkinland
Registered: 2009-04-12
Posts: 106,437

### Re: Evaluate this integral

You have heard of the wave-particle duality of light? The Tarski paradox, David Deutsch, Doron?

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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## #33 2012-07-23 12:44:17

anonimnystefy
Real Member
From: Harlan's World
Registered: 2011-05-23
Posts: 16,018

### Re: Evaluate this integral

All four I think.

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
The knowledge of some things as a function of age is a delta function.

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## #34 2012-07-23 12:50:38

bobbym
From: Bumpkinland
Registered: 2009-04-12
Posts: 106,437

### Re: Evaluate this integral

Well, then there it is.

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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## #35 2012-07-23 13:47:18

anonimnystefy
Real Member
From: Harlan's World
Registered: 2011-05-23
Posts: 16,018

### Re: Evaluate this integral

I do not get it.

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
The knowledge of some things as a function of age is a delta function.

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## #36 2012-07-23 14:12:17

bobbym
From: Bumpkinland
Registered: 2009-04-12
Posts: 106,437

### Re: Evaluate this integral

He is to packages what they are to there fields.

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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## #37 2012-07-23 14:21:58

anonimnystefy
Real Member
From: Harlan's World
Registered: 2011-05-23
Posts: 16,018

### Re: Evaluate this integral

Assuming Doron refers to Doron Zeilberger, wouldn't that be good?

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
The knowledge of some things as a function of age is a delta function.

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## #38 2012-07-23 14:59:18

bobbym
From: Bumpkinland
Registered: 2009-04-12
Posts: 106,437

### Re: Evaluate this integral

He is hated by the math community. Ridiculed and denied tenure by lesser mathematicians.

Each one is stating there are skeletons in the closet. When people ask about them they are ridiculed.

Bondarenko who I got to know on another forum has been compiling a list of errors that packages make. It is miles long. It has caused him to be ridiculed and barred from forums.

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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## #39 2012-07-23 21:20:33

anonimnystefy
Real Member
From: Harlan's World
Registered: 2011-05-23
Posts: 16,018

### Re: Evaluate this integral

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
The knowledge of some things as a function of age is a delta function.

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## #40 2012-07-23 22:46:26

bobbym
From: Bumpkinland
Registered: 2009-04-12
Posts: 106,437

### Re: Evaluate this integral

I think it means that Alpha is the bad guy.

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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## #41 2012-07-23 23:12:40

anonimnystefy
Real Member
From: Harlan's World
Registered: 2011-05-23
Posts: 16,018

### Re: Evaluate this integral

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
The knowledge of some things as a function of age is a delta function.

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## #42 2012-07-24 01:48:55

noelevans
Member
Registered: 2012-07-20
Posts: 236

### Re: Evaluate this integral

-(1/2)*(x^4+1)^(3/2)/x^2+(1/2)*x^2*sqrt(x^4+1)+(1/2)*arcsinh(x^2)

This is maple 11's answer to the integral of [(x^4 + 1)^(1/2)]/x^3 (after a little simplification of the
integrand).

Looks like a combo of (x^4 + 1)'s 3/2 power divided by x^2, 1/2 power times x^2 and an arcsinh(x^2).  So it is probably amenable to various substitution techniques but probably several of them.  Could be quite tricky!

Writing "pretty" math (two dimensional) is easier to read and grasp than LaTex (one dimensional).
LaTex is like painting on many strips of paper and then stacking them to see what picture they make.

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## #43 2012-07-24 01:54:52

bobbym
From: Bumpkinland
Registered: 2009-04-12
Posts: 106,437

### Re: Evaluate this integral

Hi;

I think he is a combination of all three.

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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## #44 2012-07-24 12:52:21

noelevans
Member
Registered: 2012-07-20
Posts: 236

### Re: Evaluate this integral

Who is M?  Isn't that James Bond's boss?  Seriously, is M for Maple or for Maxima or for Mathematica or what?

Writing "pretty" math (two dimensional) is easier to read and grasp than LaTex (one dimensional).
LaTex is like painting on many strips of paper and then stacking them to see what picture they make.

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## #45 2012-07-24 13:00:35

anonimnystefy
Real Member
From: Harlan's World
Registered: 2011-05-23
Posts: 16,018

### Re: Evaluate this integral

M here stands for Mathematica.

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
The knowledge of some things as a function of age is a delta function.

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## #46 2012-07-24 16:15:42

Fruityloop
Member
Registered: 2009-05-18
Posts: 135

### Re: Evaluate this integral

I enjoyed looking at your answer Bobbym, but I don't understand how you got

from

I'm not certain if this answer is correct, but it's the same answer from Mathematica.

Last edited by Fruityloop (2012-07-25 18:46:54)

The eclipses from Algol come further apart in time when the Earth is moving away from Algol and closer together in time when the Earth is moving towards Algol, thereby proving that the speed of light is variable and that Einstein's Special Theory of Relativity is wrong.

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## #47 2012-07-24 17:18:46

bobbym
From: Bumpkinland
Registered: 2009-04-12
Posts: 106,437

### Re: Evaluate this integral

Hi Fruityloop;

That is because there is supposed to be a du in the numerator. Fixed the original post. Tried something new with the latexing and it just did not work.

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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## #48 2012-07-25 00:46:59

anonimnystefy
Real Member
From: Harlan's World
Registered: 2011-05-23
Posts: 16,018

### Re: Evaluate this integral

What'd you try?

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
The knowledge of some things as a function of age is a delta function.

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## #49 2012-07-25 00:48:52

bobbym
From: Bumpkinland
Registered: 2009-04-12
Posts: 106,437

### Re: Evaluate this integral

Maple. If only Bondie was around to see what it did.

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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## #50 2012-07-25 01:04:48

anonimnystefy
Real Member
From: Harlan's World
Registered: 2011-05-23
Posts: 16,018

### Re: Evaluate this integral

No, I meant, what did you try with LaTeX?

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
The knowledge of some things as a function of age is a delta function.

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