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#1 2011-08-26 18:04:36

pisquared
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Cool Function

I've found a cool function: -|x|^(-|x|)
This function goes in waves over and under the point 0 of the X acces. If you go towards the negative or positive part of the X access the waves get smaller and it looks like in the end it'll be a straight line but it will only get smaller and smaller.


How many times can you subtract 7 from 83, and what is left afterwards?  You can subtract it as many times as you want, and it leaves 76 every time.  ~Author Unknown
 

#2 2011-08-26 18:29:02

bobbym
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Re: Cool Function

Hi pisquared;

What did you graph it with?


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.
 

#3 2011-08-26 20:42:05

pisquared
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Re: Cool Function

I sketched it in a notebook with a pen.
You probably expected me to tell you a name of a computer programme lol...


How many times can you subtract 7 from 83, and what is left afterwards?  You can subtract it as many times as you want, and it leaves 76 every time.  ~Author Unknown
 

#4 2011-08-26 20:48:59

bobbym
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Re: Cool Function

Hi;

Hand methods can be misleading because they cannot sample enough points.


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.
 

#5 2011-08-26 21:15:04

pisquared
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Re: Cool Function

I know, but I couldn't find a programme that doesn't cost money or actually works with the small details.
Maybe you can recommend one?

Last edited by pisquared (2011-08-26 21:16:19)


How many times can you subtract 7 from 83, and what is left afterwards?  You can subtract it as many times as you want, and it leaves 76 every time.  ~Author Unknown
 

#6 2011-08-26 21:26:45

bobbym
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Re: Cool Function

Hi;

Try geogebra.


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.
 

#7 2011-08-26 21:52:43

anonimnystefy
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Re: Cool Function

here is the graph that wolfram gives:
http://www.wolframalpha.com/input/?i=pl … %28x%29%29

Last edited by anonimnystefy (2011-08-26 21:54:30)


The limit operator is just an excuse for doing something you know you can't.
“It's the subject that nobody knows anything about that we can all talk about!” ― Richard Feynman
“Taking a new step, uttering a new word, is what people fear most.” ― Fyodor Dostoyevsky, Crime and Punishment
 

#8 2011-08-26 22:23:39

MathsIsFun
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Re: Cool Function

Plot of -abs(x)^(-abs(x))

Or put -abs(x)^(-abs(x))-y into: Equation Grapher


"The physicists defer only to mathematicians, and the mathematicians defer only to God ..."  - Leon M. Lederman
 

#9 2011-08-26 23:16:59

pisquared
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Re: Cool Function

Thanks alot everyone!


How many times can you subtract 7 from 83, and what is left afterwards?  You can subtract it as many times as you want, and it leaves 76 every time.  ~Author Unknown
 

#10 2011-08-27 02:39:50

bobbym
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Re: Cool Function

Hi pisquared;

That function is actually rather well behaved. It is easy to numerically integrate 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.
 

#11 2011-08-27 11:01:42

reconsideryouranswer
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Re: Cool Function

pisquared wrote:

"...over and under the point 0 of the

X acces
.
If you go towards the negative or positive part of the
X access
..."


Signature line:

I wish a had a more interesting signature line.
 

#12 2011-08-27 14:16:19

pisquared
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Re: Cool Function

Sorry, I live in Israel and barely know English.


How many times can you subtract 7 from 83, and what is left afterwards?  You can subtract it as many times as you want, and it leaves 76 every time.  ~Author Unknown
 

#13 2011-08-27 15:01:37

bobbym
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Re: Cool Function

Hi pisquared;

That is okay, your English is rather good.


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.
 

#14 2011-08-27 22:22:21

pisquared
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Re: Cool Function

I'm glad you think that smile


How many times can you subtract 7 from 83, and what is left afterwards?  You can subtract it as many times as you want, and it leaves 76 every time.  ~Author Unknown
 

#15 2011-08-29 06:50:54

benice
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Re: Cool Function

pisquared wrote:

I've found a cool function: -|x|^(-|x|)

Hi pisquared,

You are so sick! Me too!


http://i1216.photobucket.com/albums/dd371/benice_chen/womans_body.png


My Gallery of Math Art: benice equation
 

#16 2011-08-29 06:52:48

bobbym
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Re: Cool Function

Hi;

Looks like a hamburger! A delicious one!


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.
 

#17 2011-08-29 07:31:32

benice
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Re: Cool Function

bobbym wrote:

Hi;

Looks like a hamburger! A delicious one!

Hi,

The boundary curve is a superellipse: (x/4)^4 + (y/3)^4 = 1.


My Gallery of Math Art: benice equation
 

#18 2011-08-29 07:39:37

bobbym
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Re: Cool Function

Hi benice;

Thanks for the info. A superellipse? I never heard of that.
What is 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.
 

#19 2011-08-29 13:10:16

pisquared
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Re: Cool Function

Hey benice,
Wow! What programme did you use?

and bobbym,
I agree, it looks like a pink delicious hamburger!


How many times can you subtract 7 from 83, and what is left afterwards?  You can subtract it as many times as you want, and it leaves 76 every time.  ~Author Unknown
 

#20 2011-08-29 16:01:49

bobbym
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Re: Cool Function

Hi pisquared;

Yes, perhaps a little on the rare side but there is an easy fix for that!

Hi benice;

Did not notice the link to the superellipse page.
Thanks for providing 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.
 

#21 2011-08-30 08:04:26

benice
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Re: Cool Function

pisquared wrote:

Hey benice,
Wow! What programme did you use?

UDAV (universal data array visualization)

It's free!


My Gallery of Math Art: benice equation
 

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