diff --git a/College/AU 26/MATH 208 (Matrix Algebra)/Chapter 2.1 Notes.md b/College/AU 26/MATH 208 (Matrix Algebra)/Chapter 2.1 Notes.md
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+#uw/notes #uw/class/math208 
+- - -
+Vectors can be represented vertically in a matrix:
+$$u = \begin{bmatrix}
+u_{1} \\ u_{2} \\ \vdots \\ u_{n}
+\end{bmatrix}$$
+