Corners

Corners of the Drawing Pad: GeoGebra always knows the coordinates of the corners of the drawing pad.

 *  Related topics: Background Images

The corners of the Drawing pad are Corner[1], Corner[2], Corner[3], Corner[4]. In the GeoGebra Activity below we:
 * 1) Clicked in the input bar and typed Corner[1] and hit Enter. We got a point A with the coordinates of the bottom left hand corner.
 * 2) Again, In the input bar we typed B=A+(1,1). We can see B because it is up 1 and over to the right 1.

In the GeoGebra window below: ||  || media type="custom" key="6507855"
 * Zoom or pan. The coordinates of A and B will change. You cannot see A because it is in the corner :)
 * Repeat 1-2 with Corner[2]. How would you define D so you can see it?