0 a region formed by a horizontal number line and a vertical number line that meet at their zero points --
1 a region formed by a horizontal number line and a vertical number line that meet at their zero points --
The first partial derivatives of the delta function are thought of as double layers along the coordinate planes.
One might expect from the preceding statements that there could be up to eight lobes, one in each octant of space which has been divided by the coordinate planes.
This software is based on the principles of "volumetric anatomy" which uses three intersecting coordinate planes to locate the organs of the human body based on mathematical calculations.
The 24 edges bound 6 squares lying in the 6 coordinate planes.
The components of the bivector are the projected areas of the parallelogram on each of the three coordinate planes.
Projections of a triangle onto coordinate planes.
A sixth step is then added with interpolation between the representations in the three coordinate planes.
The surface is represented by functions defined on the three coordinate planes.