一些必须知识点：skew matrix 是so(3)李代数中的，对应到SO(3)李群中的旋转矩阵R; twist matrix 是se(3)李代数中的，对应到SE(3)李群中的变换矩阵T。一些基本的知识点，skew matrix如何表达等 ...

In this video playlist, I show you how to solve different math problems for Algebra, Geometry, Algebra 2, and Pre-Calculus. The video will provide you with math help using step-by-step instruction.

1) P is transforming from all of 2D space to all of 2D space. The range of P is all of 2D space so the rank is 2. Q is squishing space from 2D to a 1D line. The range of Q is that 1D line so the rank ...