User:Isaacreinhardt1

Precalc student mostly interested in vectors and linear transformation matrices, and visualizing math topics. I plan on majoring in pure mathematics.

Currently
 * working on a paper about the geometric meaning of high school matrix and vector operations
 * starting to study some set theory

To do
 * prove anticlockwise and clockwise plane rotation matrices are inverses of each other -- BY INVERSE MATRIX DEFINITION rather $(\mathbf {R_1} \mathbf {R_2} = \mathbf {I_2})$ because the current proof assumes $\mathbf {R_1}$ and $\mathbf {R_2}$ are invertible
 * use Definition:Reflection (Geometry)/Plane and Equations defining Plane Reflection/Cartesian to get Matrix Equation of Plane Reflection
 * determinant of plane reflection matrix = -1
 * plane reflection matrix is its own inverse