06-27-2022 || 22:52
Tags: #linear-algebra #math

Matrices / Matrix

Matrix is a 2-dimensional vector, so instead of represent it by one index, we represent it by two dimension.
Matrix is represented by uppercase bold letter like X

If a matrix has only real valued number, m rows and n columns, then it will be represented as $\mathbb{R} \in R^{m \times n}$