What is an octent in a grid?

Question

There are 4 quadrants in a grid and 8 octents. I assume that octents 1 and 2 are in quadrent 1, splitting it in half at 45 degrees. Is this correct?

Answer 1

No, it does not split it in 45-degree increments.

In a two-dimensional grid, there are four quadrants. In a three-dimensional grid-space, there are eight octants.

Think of it this way. You have one horizontal axis, running left and right. You have one vertical axis, running up and down. The third axis sticks straight out toward you. Now the eight regions (octants) into which the space has been divided can be described as follows:
front upper right
front upper left
front lower right
front lower left
back upper right
back upper left
back lower right
back lower left

These do not have a "normal numbering" as do Quadrants I, II, III, and IV.

Answer 2

No.

I think you mean octant grid.

It's a 3 dimensional grid.

"The xy-, yz-, and xz-planes divide the three-dimensional space into eight subdivisions known as octants, similar to the quadrants of 2D space. While conventions have been established for the labeling of the four quadrants of the x-y plane, only the first octant of three dimensional space is labeled. It contains all of the points whose x, y, and z coordinates are positive."