Support for the program Graph used to draw graphs of mathematical functions.

Animating functions

First of all- I love graph. It'e easy to-use and very frindly to avarage high-school student.

In order to do a project for school, I need to animate servral function, for example- ax^2.

I'll be happy to know how can I do it and if I can animate function with servral prameters.

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Ivan Johansen | 12 May 20:31

Re: Animating functions

ויינזון שחף wrote:
> First of all- I love graph. It'e easy to-use and very frindly to avarage 
> high-school student.
> In order to do a project for school, I need to animate servral function, 
> for example- ax^2.
> I'll be happy to know how can I do it and if I can animate function with 
> servral prameters.

To animate f(x)=a*x^2 you first create the constant a in the 
Function|Custom functions dialog, and insert the function a*x^2. Then in 
the Calc|Animate dialog you select the constant you want to animate, 
which in this case can only be a, You select the range for the constant 
and how much it should change between each frame. When you click on the 
animate button the animation is created.

You may also want to look at the Example15.grf file installed with Graph.

Best regards
Ivan Johansen

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Bernadette Duffy | 16 May 10:35

Problems with Download

We have Windows XP and the program won't download. Can you help us?

Bernadette and Michael.

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Ivan Johansen | 18 May 11:58

Re: Problems with Download

Bernadette Duffy wrote:
> We have Windows XP and the program won't download.  Can you help us?

I have no trouble downloading when I try. Maybe it will help to try 
again. Else you can try to download the file from SourceForge:
http://sf.net/projects/graph

Best regards
Ivan Johansen

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Joseph A Capasso | 24 May 12:20

Help

Hi ,

I'm trying to graph the following functions and I can't get the program 
to work right.

y = {x+5 if x <=1
      { 2-3x if x >1

Can you show me how to do this?

Thanks,

Joe

Attachment (joseph.capasso.vcf): text/x-vcard, 256 bytes

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Ivan Johansen | 24 May 17:32

Re: Help

Joseph A Capasso wrote:
> I'm trying to graph the following functions and I can't get the program 
> to work right.
> 
> y = {x+5 if x <=1
>      { 2-3x if x >1

You just insert the function:
f(x)=if(x<=1, x+5, 2-3x)

Best regards
Ivan Johansen

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Andrew Ko | 29 May 14:58

can't plot it right

Hi ,

I'm trying to graph the following functions and I can't get the program
to work right.

y = x^(1/3)*(x-2)^(2/3)*(x+1)^(4/3)

Can you show me how to do this?

Thanks,

Andrew

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Ivan Johansen | 29 May 15:13

Re: can't plot it right

Andrew Ko wrote:
> I'm trying to graph the following functions and I can't get the program
> to work right.
> 
> y = x^(1/3)*(x-2)^(2/3)*(x+1)^(4/3)
> 
> Can you show me how to do this?

Use Function|Insert function in the menu to get the Insert function 
dialog. Enter the formula x^(1/3)*(x-2)^(2/3)*(x+1)^(4/3) in the f(x)= 
field and click OK. You will probably get a better view of the function 
by selecting Zoom|Fit in the menu.

Best regards
Ivan Johansen

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Andrew Ko | 29 May 17:26

can't plot it right

Hi,

The zoom|fit did not solve the problem because there should be a bulge between x=0 to x=2 which is missing. furthermore the tracing to the left 0f x=-1 disappeared.

Andrew

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Ivan Johansen | 29 May 19:29

Re: can't plot it right

Andrew Ko wrote:
> The zoom|fit did not solve the problem because there should be a bulge 
> between x=0 to x=2 which is missing.  furthermore the tracing to the 
> left 0f x=-1 disappeared.

In that case you have to rewrite the function to:
f(x)=root(3, x)*root(3, x-2)^2*root(3, x+1)^4

Alternatively you can try the beta version of Graph 4.3, which handles 
the original function correctly:
http://padowan.dk/graph/DownloadBeta.php

Best regards
Ivan Johansen

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