What is 3D Mathematics?

Question

Mathematics

I recently learned about the existence of 3D mathematics by searching the Internet - I did not find anything. Can you explain what it is and why it is needed, and whether I need it as a 3D designer.

Answer 1

Vector algebra (well, or vector geometry) in 3D.
Vectors, matrices, bases, homogeneous coordinates, view transformations, rotation quaternion…
The first course of the university, covered by the course “Linear Algebra and Analytic Geometry”.
The designer doesn't need to.

Answer 2

https://en.wikipedia.org/wiki/Transformation_matrix
Apparently a friend was talking about the knowledge needed to understand the content of this and similar articles.