bug: quaternion?

src/quaternion.ts

@@ -1,12 +1,14 @@
 import { Vec3 } from "./vec";
 
+const math = globalThis.math;
+
 export class Quaternion {
   public constructor(
     public x: number,
     public y: number,
     public z: number,
     public w: number,
-  ) { }
+  ) {}
 
   public static fromXYZ({
     x,