Mathematics, Machine Learning, Linear Algebra, Math, Getting Started.
so it makes sense that ℝ² is the two dimensional space of all the possible points (x, y) of real numbers. Vectors can be in ℝ², ℝ³, ℝ⁴ … ℝⁿ, note that the dimension of the vector space corresponds to the number of entries in the vector. You will likely eventually encounter the peculiar zero vector