How to enter formules

 
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albert



Joined: 13 May 2011
Posts: 3

PostPosted: Sat May 14, 2011 6:22 pm    Post subject: How to enter formules Reply with quote

Hi everybody,

I'm a hobby mathematician and like to create 3D object sucg as shere,

hyperboloid....from analytic geometrie.

Three days ago I downloaded K3dsurf.

My question how to enter the formules:

example cone: x^2/4+y^2/9=z^2/9

I did the following:

push edit en typy

F(): x^2/4+y^/9-z^2/9

(x):-4,4
(y):-4,4
(z):-4,4

the I saved it to examples in K3d directory.

Then I loaded it an push compute.

Every time I got an error : Premature end of string.

Or have you to enter formules directly in the freen box on the left???

Can you help me??

Thank you

albert
Belgium
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nextstep
Site Admin


Joined: 06 Jan 2007
Posts: 538

PostPosted: Sun May 15, 2011 4:32 pm    Post subject: Reply with quote

Hi Albert,
Welcome to the forum. You can either enter your formula directly in the green area on the left (see screen-shot) or save your formula in a file and load it with the "Load" button. Just copy the following text and save it in a .k3ds file (for example "cone_1.k3ds" )
Quote:
Name: cone_1
F(): x^2/4+y^2/9-z^2/9
[x]: -4 , 4
[y]: -4 , 4
[z]: -4 , 4
;





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Abderrahman
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albert



Joined: 13 May 2011
Posts: 3

PostPosted: Tue May 24, 2011 2:06 pm    Post subject: how to enter formules. Reply with quote

Hi,

Thank you for your help.If I enter the formules in the green area on the

left corner it's okay.I get the pictures.

Then you said copy the following text and save it.

1)how I save it and where.I tried and saved it in the green area but if
I hit the compute button I get a syntax error.

2)If you have time can you explain to me

Thank you

cheers

albert
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nextstep
Site Admin


Joined: 06 Jan 2007
Posts: 538

PostPosted: Tue May 24, 2011 11:50 pm    Post subject: Reply with quote

Hi,
Quote:
If I enter the formules in the green area on the

left corner it's okay.I get the pictures.

Then you have only to do this: click the "Edit" button .
A new window will appear with the formulas inside it. you can save this in a file (for example "cone.k3ds") by doing: "File"->"Save As..."
Hope this can help Smile
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Abderrahman
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albert



Joined: 13 May 2011
Posts: 3

PostPosted: Wed May 25, 2011 10:37 am    Post subject: how to enter formules Reply with quote

Hi,

Thank you for your help.After push the edit button you have to make some

changes.The formules appear in one row.Just push enter on te wright

place and they appear in different rows.Then save as....Then load and

everything is okay.

Thank you

cheers

albert
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