Semicircle command needing three arguements

Marco Rainaldi shared this question 1 month ago
Answered

I am trying to use the Semicircle command from the input bar, and seem to be having trouble. I have two lists of points, l1 and l2, and try the command "Semicircle(l1(1),l2(1))" which is acccepted as input. However, when I check the Algebra view, I see that "Semicircle(l1(1),l2(1),space)" is created and undefined.

If I use the tool from the menu, and select the points using my mouse, everything is fine and the object created looks like "Semicircle(point1,point2)"

Any idea why the third agruement is created and filled with "space"?

Comments (4)

photo
1

Did you have the 3D View open? Please post your .ggb file

photo
1

I do have 3D graphics view open. I've attached the file to this post.

Try entering: Semicircle(l1(1),l2(1)) and you'll get the result in the Algebra view with the "space" as undefined

photo
1

You can change it to Semicircle(l1(1), l2(1),xOyPlane) or make sure the 2D View is focused when you make it

photo
1

Primero haz clic en la venta graphics y escribe Semicircle(l1(1),l2(1)). El comando funciona correctamente y crea Semicircle(l1(1),l2(1), xOyPlane)

Segundo haz clic en 3Dgraphics. el comando se convierte en Semicircle(l1(1),l2(1),space) y obtienes indefinido

crea un plano en 3D ie: eq1:x+y+z=0 y crea una ventana vista 2D del plano. pon dos puntos y crea el semicirculo obtendrás semicircle(point,point,eq1)

cuando escribes Semicircle(l1(1),l2(1)) con la ventana 3D seleccionada GG no sabe en qué plano colocar el semicírculo. puede ser un bug o algo que especificar en la ayuda del comando

Comments have been locked on this page!

© 2021 International GeoGebra Institute