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education/math/MATH1060 (trig)/Vectors.md

@@ -5,5 +5,13 @@ Vectors are often denoted as a matrix with two rows: $\begin{bmatrix}1 \\2\end{b
 
 # Magnitude
 The magnitude of a vector is $|\vec{v}| = \sqrt{a^2 + b^2}$
+
 # Direction
 The direction of a vector is $\theta = \tan^-1(\frac{b}{a})$.
+
+# Addition
+To find $\vec{u} + \vec{v}$, we can put one vector on the end of another vector. The resulting vector will share the same tail as the first vector, and the same head as the second vector.
+
+# Scalar Multiplication
+
+A **scalar** is just a real number. Scalar multiplication is multiplying a vector with a real number. This will scale or shrink a vector, but will not change