What Is a Ball Tool?

Spherical (spherical is the name people call in daily life, strictly called sphere, English: sphere) is a simple space geometry. The semicircle takes its diameter as the axis of rotation, and the surface formed by the rotation is called a spherical surface. The geometry surrounded by a sphere is called a sphere, or sphere for short. The center of a semicircle is called the sphere center. The line segment connecting the center of the sphere with any point on the sphere is called the radius of the sphere. The distance from the center of the sphere to any point on the sphere is equal. The line segment that connects two points on the sphere and passes through the center of the sphere is called the diameter of the sphere.

in

in

in

In Vieux space, one center is

With a radius of

of

Dimensional (kickoff)

Distance less than

A collection of dots. A center for

With a radius of

of

The dimensional closed ball is a

Distance is less than or equal to

A collection of dots.

in

In Vieux space, each ball is a certain

make

For one

Each with norm | · |

in

due to

Semicircle with its diameter as

Spherical Star Cluster, Spherical Lightning, Spherical Building, Spherical Activated Carbon, Spherical Robot, Spherical Sedge, Colored Spherical Pearl, Spherical Protein, Spherocystis, Pseudomonas Spherical, Football, Basketball, Ball, Table Tennis, Badminton, Golf Ball and so on.