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#9351 2013-03-20 10:54:43

zetafunc.
Guest

Re: Linear Interpolation FP1 Formula

Maybe everyone is just bored of talking to me. And adriana is too lazy to go through the maths e-mails so she is putting off replying to them, probably.

#9352 2013-03-20 10:58:42

bobbym
Administrator
From: Bumpkinland
Registered: 2009-04-12
Posts: 82,680

Re: Linear Interpolation FP1 Formula

Is she generally lazy?


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.

Online

#9353 2013-03-20 11:02:31

zetafunc.
Guest

Re: Linear Interpolation FP1 Formula

I'm not sure. She washed up all our dishes after we ate at her house, but another time I saw her just drop some food under the sofa (it was a bit of sweetcorn from her pizza) and she didn't bother to pick it up. That was pretty gross. A sign of laziness, maybe?

#9354 2013-03-20 11:06:28

bobbym
Administrator
From: Bumpkinland
Registered: 2009-04-12
Posts: 82,680

Re: Linear Interpolation FP1 Formula

Girls are a lot sloppier in their habits then they let on.


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.

Online

#9355 2013-03-20 19:41:10

zetafunc.
Guest

Re: Linear Interpolation FP1 Formula

She was sloppy, in that case. But I can't think of other encounters where she was.

#9356 2013-03-20 19:49:52

bobbym
Administrator
From: Bumpkinland
Registered: 2009-04-12
Posts: 82,680

Re: Linear Interpolation FP1 Formula

Sometimes they have closets full of junk. I mean from the floor to the ceiling just stuffed in there. Some of them just throw there clothes around.


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.

Online

#9357 2013-03-20 19:51:59

zetafunc.
Guest

Re: Linear Interpolation FP1 Formula

I don't know about that, but she does sometimes go to school in track bottoms or sometimes even pyjamas.

#9358 2013-03-20 19:53:56

bobbym
Administrator
From: Bumpkinland
Registered: 2009-04-12
Posts: 82,680

Re: Linear Interpolation FP1 Formula

Pajamas? How can you tell?


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.

Online

#9359 2013-03-20 19:58:50

zetafunc.
Guest

Re: Linear Interpolation FP1 Formula

She told me. Although most of the time she sleeps in the track-bottoms then goes to school wearing the same ones. She said she doesn't care...

#9360 2013-03-20 20:00:42

bobbym
Administrator
From: Bumpkinland
Registered: 2009-04-12
Posts: 82,680

Re: Linear Interpolation FP1 Formula

Seems like she is on the carefree side.


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.

Online

#9361 2013-03-20 20:04:48

zetafunc.
Guest

Re: Linear Interpolation FP1 Formula

I guess so...

#9362 2013-03-20 20:05:42

bobbym
Administrator
From: Bumpkinland
Registered: 2009-04-12
Posts: 82,680

Re: Linear Interpolation FP1 Formula

Yes, the modern gal is getting stranger and stranger.


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.

Online

#9363 2013-03-20 20:11:05

zetafunc.
Guest

Re: Linear Interpolation FP1 Formula

She was nice to talk to though, even though she is strange. Made many of my otherwise boring days interesting.

#9364 2013-03-20 20:13:29

bobbym
Administrator
From: Bumpkinland
Registered: 2009-04-12
Posts: 82,680

Re: Linear Interpolation FP1 Formula

She might come back, who knows. In the meantime forget her.


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.

Online

#9365 2013-03-20 20:16:59

zetafunc.
Guest

Re: Linear Interpolation FP1 Formula

Easier said than done, I even think about F sometimes.

#9366 2013-03-20 20:20:20

bobbym
Administrator
From: Bumpkinland
Registered: 2009-04-12
Posts: 82,680

Re: Linear Interpolation FP1 Formula

I heard she was abducted by aliens and whisked away to Reticulum 4. You might as well forget about her.


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.

Online

#9367 2013-03-20 20:22:04

zetafunc.
Guest

Re: Linear Interpolation FP1 Formula

I just need to move on to another girl who interests me, although there aren't any at the moment.

#9368 2013-03-20 20:28:31

bobbym
Administrator
From: Bumpkinland
Registered: 2009-04-12
Posts: 82,680

Re: Linear Interpolation FP1 Formula

Then turn off the thinking about them. Find something else to occupy your thoughts until one shows up.


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.

Online

#9369 2013-03-20 20:41:19

zetafunc.
Guest

Re: Linear Interpolation FP1 Formula

Maths reminds me of F sometimes. I can do that though.

I am trying to get to grips with contour integrals but I'm not too sure how they work, my knowledge is pretty limited. Do you know a lot about it?

#9370 2013-03-20 20:44:44

bobbym
Administrator
From: Bumpkinland
Registered: 2009-04-12
Posts: 82,680

Re: Linear Interpolation FP1 Formula

Not really, I always have had trouble with them too. We could try them together maybe solve a few.

First I have to wash this stack of dishes so I will be back then.


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.

Online

#9371 2013-03-20 20:51:18

zetafunc.
Guest

Re: Linear Interpolation FP1 Formula

Is the residue of some function f(z) always the co-efficient of 1/(z - a) in its Laurent series? A lot of the time I just end up finding the residue to be zero...

Okay, see you later.

#9372 2013-03-20 23:23:39

bobbym
Administrator
From: Bumpkinland
Registered: 2009-04-12
Posts: 82,680

Re: Linear Interpolation FP1 Formula

Hi;

They say that it is the coefficient of the

coefficient of the Laurent series, so I would say yes.


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.

Online

#9373 2013-03-20 23:27:17

zetafunc.
Guest

Re: Linear Interpolation FP1 Formula

And is it also true that if the residue is 0 then the contour evaluates to 0?

I thought that we had to evaluate 2*pi*i*(sum of the residues)... if the sum of the residues is 0, then...

#9374 2013-03-20 23:33:07

bobbym
Administrator
From: Bumpkinland
Registered: 2009-04-12
Posts: 82,680

Re: Linear Interpolation FP1 Formula

Hi;

I do not know if that is true.


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.

Online

#9375 2013-03-20 23:48:22

zetafunc.
Guest

Re: Linear Interpolation FP1 Formula

Okay...

I guess I could try doing something simple like

We know this evaluates to π, so we could maybe try using a contour to try and get the answer too.

Considering instead

where C is a simple closed curve -- a semi-circle in the upper half of the complex plane, from negative infinity to positive infinity, so it encloses the entire real integral, including one of the poles (z = i).

However, I asked Wolfram for the series expansion of 1/(1 + z^2), and it's giving me a series expansion at z = i, and another at z = -i. Since my contour encloses the pole at z = i, I'm interested in the residue of that series.

But I don't know how they found that Laurent series... can you tell me how they found that series expansion that includes the negative power of (z - i)?

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