How to show the equation of every single level curves?

Hayat shared this question 4 months ago

Answered

If i drawn contour of f(x,y) = x^2 - y by sequence(intersectpath(z=0,f(x,y)-k),k,-10,10,2)

I want to show the name of each level curve one by one . So i can show or hide every single level curve name. e.g : x^2 - y = 2

The same question

Comments (25)

Simona Riva ● 4 months ago

Create a slider k, e.g. k in [-10,10] and enter x^2-y=k

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Hayat ● 4 months ago

Pls see attachment and give the solution for contour level curves name.

Files: curve intersect...

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Hayat ● 4 months ago

Hi Team,

Pls see above attached and give the solution.

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rami ● 4 months ago

Type in the Input-Bar:

Execute(Zip(""eq,eq,l1))

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Hayat ● 4 months ago

Hi rami,, Thanks for the reply can you pls apply command in attached. So i can see the pattern.

Files: curve intersect...

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rami ● 4 months ago

sorry was wrong (CopyFreeObject() is needed (?) and instead of Zip() Sequence() is needed (?))

In the attachment an extended version as button (bottom left in Graphics)

Note: some equations make as red is manually

Files: curve intersect...

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Hayat ● 4 months ago

Thanks rami, i am checking this. Can you pls check my other ticket in which i ask how to find intersection between 2 curves in the same attachment you shared.

as i change my function it work but when i change my constraint equation it did not work.

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Hayat ● 4 months ago

Hi rami,

I checked the attachment it shows the same equation on every level curve.

Is it possible to see equation of every single level curve separately which shows level curve value at the curve.

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rami ● 4 months ago

No problem here (Windows 10, GGB 5 and 6 Desktop (actual)) Filename: ....2C

5638dfb6588e346ebb45e7a8ad7f4dfb

==================================

Questions:

What file name
What GGB release (Example 6.0.546)
What GGB type / System (Example Classic portable Windows 10)
When you open: you see the picture above. If yes: something wrong?
When you click button: what happen.

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Hayat ● 4 months ago

Hello Rami,

Yes you are right before click button it look the same you attached. When i clicked button it changed all curves same equation. 0f990f7352ea9037428f6d5d9c6de0b5

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rami ● 4 months ago

It's not the same picture (formula, red curves, 3D perspective)

I think your version is wrong. Download again from here.

If not OK: answer the other questions (1,2 and 3) above.

(I think I'm on another GGB server (ASIA) maybe they're not always in sync)

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Hayat ● 4 months ago

Before click button it looks, but after click it changed what i shared in previous comment. f59140f2e705078ebd24a15d5aba20b1

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Hayat ● 4 months ago

button changed the level curves name same.

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Hayat ● 4 months ago

What file name. (Ans. curve intersection-2C)
What GGB release (Example 6.0.546) (Ans. Geogebra Classics 6.0535)
What GGB type / System (Example Classic portable Windows 10) (Ans. Classic)
When you open: you see the picture above. If yes: something wrong? (Yes i seen red circles and every equation shows different level curve before click button.)
When you click button: what happen. (Ans. When i click button it change all level curve same equation a i attached previously and red color vanished).

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rami ● 4 months ago

Please post (send back) the file you use in your post above.

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Hayat ● 4 months ago

Pls see attached. Rami i want to know how you and other users knows very much about software.

Files: curve intersect...

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rami ● 4 months ago

To check the bug I need the file you use with the wrong result.

And please say the Browser-Name you use (Example: Chrome).

And please delete the cache in your Browser, then download again (2C) and test and give the response OK or NOK.

After this I try to send a version OK (or the correct script as text in the button)

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Hayat ● 4 months ago

Pls see attached wrong result file.

Files: Curve intersect...

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rami ● 4 months ago

Sorry, all in your version "Curve intersection-5.ggb" is OK and same as my lokal version 2C

After click on Button: 11 different curves are created in 2D and 3D, all black (it's OK: colour must be set manually)
When in the head of algebra-view the view is changed to definition, then the different definitions are view. (Maybe this is your problem)
For me is not clear what is showing when view is set to "value". I think it's must be same as "definition", maybe a small (viewing) Bug in the context CopyFreeObect.

I test with classic Desktop 5.0 and 6.0 and and WEB: https://www.geogebra.org/classic

Now I don't understand anything.

Maybe you can send a screenshot after click the button and after you set in the head of algebra-view the view to "definition"

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Hayat ● 4 months ago

Before click the button as i open your local version "2C" it shows this. All 11 different curves in black and with some red curves shown. bdbed0fb706e3441c16b0518f02fd32c

After click the button this is the screenshot. It changes algebra view curves to all same equation.

71e8df955d5a8497c526aab3a538c2ea

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rami ● 4 months ago

yes: I think it's (definitiv) a GGB-Bug:

When you save this state (after click button) and reopen, then the algebra-view is OK.

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Hayat ● 4 months ago

Thanks rami for your support. I am keenly wanted to know how you guys learn that much about software. If you answer this i am really happy. It might help me .

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rami ● 4 months ago

First I ask the manual, and then the (GGB) system. For this I make separates, small GGB-Testfiles to test my hypotheses how ggb works. And: i try to make a hard difference between "I think / I belive" and "I'm sure". I try also to think "I make a bug" and not "GGB has a bug" and I try to find a workaround. Sometimes help a search in the GGB-forum (via Google), Sometimes help Intuition. And most importantly, I stop working when I'm not happy (Note: I am retired).

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Hayat ● 4 months ago

Is it possible to explain. How GGB is better/different than MATLAB , Mathematica and maple. In your opinion.

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rami ● 4 months ago

sorry I don't know.

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