diff --git a/Math/Math/Vector.swift b/Math/Math/Vector.swift
index 9cf459a..42113f1 100644
--- a/Math/Math/Vector.swift
+++ b/Math/Math/Vector.swift
@@ -189,6 +189,8 @@ extension Vector3 {
     }
 }
 
+// MARK: Addition
+
 public prefix func -<T: Vector>(v: T) -> T {
     var out = v
     for i in 0..<T.count {
@@ -221,6 +223,8 @@ public func -<T: Vector>(lhs: T, rhs: T) -> T {
     return out
 }
 
+// MARK: Multiplication
+
 public func *=<T: Vector>(inout lhs: T, rhs: Float) {
     for i in 0..<T.count {
         lhs[i] *= rhs