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#9751 2013-04-02 02:54:59

bobbym
Administrator
From: Bumpkinland
Registered: 2009-04-12
Posts: 84,400

Re: Linear Interpolation FP1 Formula

No, doing those dishes. All the dishes and glasses and everything else was in the sink. I got sick of looking at that.


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.

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#9752 2013-04-02 03:10:29

zetafunc.
Guest

Re: Linear Interpolation FP1 Formula

Oh, that. Yes, it takes me an hour to do the dishes sometimes... only because I am thorough.

#9753 2013-04-02 03:38:26

bobbym
Administrator
From: Bumpkinland
Registered: 2009-04-12
Posts: 84,400

Re: Linear Interpolation FP1 Formula

Takes me long because I let them pile 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.

Offline

#9754 2013-04-02 03:55:00

zetafunc.
Guest

Re: Linear Interpolation FP1 Formula

I think that is human nature...

#9755 2013-04-02 04:05:33

bobbym
Administrator
From: Bumpkinland
Registered: 2009-04-12
Posts: 84,400

Re: Linear Interpolation FP1 Formula

I hate housework...

Does it have a residue command?


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.

Offline

#9756 2013-04-02 04:09:20

zetafunc.
Guest

Re: Linear Interpolation FP1 Formula

I haven't been able to find one. So I tried looking for a Laurent series command or something (then I could just look for the 1/(z - c) power), but I could not find that either...

#9757 2013-04-02 04:12:13

bobbym
Administrator
From: Bumpkinland
Registered: 2009-04-12
Posts: 84,400

Re: Linear Interpolation FP1 Formula

Okay, I was just wondering. Perhaps taylor can do it?


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.

Offline

#9758 2013-04-02 04:14:21

zetafunc.
Guest

Re: Linear Interpolation FP1 Formula

I tried that too but I cannot get it to give me negative powers (well it gives me something else that isn't making sense to me)...

#9759 2013-04-02 04:14:59

bobbym
Administrator
From: Bumpkinland
Registered: 2009-04-12
Posts: 84,400

Re: Linear Interpolation FP1 Formula

What one did you try?


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.

Offline

#9760 2013-04-02 04:20:49

zetafunc.
Guest

Re: Linear Interpolation FP1 Formula

taylor(exp(x), x, -5, 5);

that ends up giving me a Taylor series with powers of e in the denominators and powers of (x+5) in the numerators...

#9761 2013-04-02 04:26:13

bobbym
Administrator
From: Bumpkinland
Registered: 2009-04-12
Posts: 84,400

Re: Linear Interpolation FP1 Formula

That is correct according to Mathematica.


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.

Offline

#9762 2013-04-02 04:34:18

zetafunc.
Guest

Re: Linear Interpolation FP1 Formula

What is correct?

#9763 2013-04-02 04:39:36

bobbym
Administrator
From: Bumpkinland
Registered: 2009-04-12
Posts: 84,400

Re: Linear Interpolation FP1 Formula

That expansion is correct.

Try this one and you will see that taylor can get Laurents too.

taylor(1/(1-x^2),x,-1,5);


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.

Offline

#9764 2013-04-02 04:51:42

zetafunc.
Guest

Re: Linear Interpolation FP1 Formula

That is interesting, so sometimes it works, sometimes it doesn't.

#9765 2013-04-02 04:56:12

bobbym
Administrator
From: Bumpkinland
Registered: 2009-04-12
Posts: 84,400

Re: Linear Interpolation FP1 Formula

When did it not?


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.

Offline

#9766 2013-04-02 04:58:48

zetafunc.
Guest

Re: Linear Interpolation FP1 Formula

Hmm, never mind, I was confused why it was not working for e^x -- it seems e^x does not have a Laurent series?

#9767 2013-04-02 05:01:18

bobbym
Administrator
From: Bumpkinland
Registered: 2009-04-12
Posts: 84,400

Re: Linear Interpolation FP1 Formula

Hi;

Correct , it does not.


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.

Offline

#9768 2013-04-02 05:54:36

zetafunc.
Guest

Re: Linear Interpolation FP1 Formula

I feel like I have a powerful tool (Maxima) in an idiot's hands (me).

#9769 2013-04-02 05:57:06

bobbym
Administrator
From: Bumpkinland
Registered: 2009-04-12
Posts: 84,400

Re: Linear Interpolation FP1 Formula

I have been working with many CAS since 1998. I have only scratched the surface. Welcome to the New Math!


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.

Offline

#9770 2013-04-02 05:59:01

zetafunc.
Guest

Re: Linear Interpolation FP1 Formula

I thought you said you knew 16 programming languages or something...

#9771 2013-04-02 06:01:51

bobbym
Administrator
From: Bumpkinland
Registered: 2009-04-12
Posts: 84,400

Re: Linear Interpolation FP1 Formula

At one time I knew 10 or 12. The last being C++ which was my favorite. Then we discovered Mupad lite. I could not believe my eyes. Everything we were trying to write our program to do they had already done and then some.

I threw away those languages and my TI-92 and became what is known as a package jockey.


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.

Offline

#9772 2013-04-02 06:26:54

zetafunc.
Guest

Re: Linear Interpolation FP1 Formula

Hmm. So, is there any use in knowing lots of programming languages these days? Or can a package likely do all of that for you?

#9773 2013-04-02 06:30:51

bobbym
Administrator
From: Bumpkinland
Registered: 2009-04-12
Posts: 84,400

Re: Linear Interpolation FP1 Formula

A package can do all of that and more. Combining mathematics and programming produces a powerful weapon.

The newest idea is the revolutionary program called geogebra. It combines geometry with the rest of mathematics and programming.


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.

Offline

#9774 2013-04-02 06:37:50

zetafunc.
Guest

Re: Linear Interpolation FP1 Formula

I've heard of that one. Never downloaded it though, I hate geometry...

#9775 2013-04-02 06:41:23

bobbym
Administrator
From: Bumpkinland
Registered: 2009-04-12
Posts: 84,400

Re: Linear Interpolation FP1 Formula

I did too, until geogebra made it fun. What you hate is how they teach it.


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.

Offline

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