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albert

Joined: 13 May 2011
Posts: 3

 Posted: Sat May 14, 2011 6:22 pm    Post subject: How to enter formules 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
nextstep

Joined: 06 Jan 2007
Posts: 539

Posted: Sun May 15, 2011 4:32 pm    Post subject:

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
albert

Joined: 13 May 2011
Posts: 3

 Posted: Tue May 24, 2011 2:06 pm    Post subject: how to enter formules. 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
nextstep

Joined: 06 Jan 2007
Posts: 539

Posted: Tue May 24, 2011 11:50 pm    Post subject:

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
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Cheers,
Abderrahman
albert

Joined: 13 May 2011
Posts: 3

 Posted: Wed May 25, 2011 10:37 am    Post subject: how to enter formules 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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