reorder based on @WestLangley suggestion.

src/math/Matrix4.js

@@ -416,42 +416,38 @@ THREE.Matrix4.prototype = {
 		//( based on http://www.euclideanspace.com/maths/algebra/matrix/functions/inverse/fourD/index.htm )
 
 		return (
-
-			+n11 * (
-				+n23 * n34 * n42
-				-n24 * n33 * n42
-				+n24 * n32 * n43
-				-n22 * n34 * n43
-				-n23 * n32 * n44
-				+n22 * n33 * n44
-				)
-
-			+n21 * (
-				+n14 * n33 * n42
-				-n13 * n34 * n42
-				-n14 * n32 * n43
-				+n12 * n34 * n43
-				+n13 * n32 * n44
-				-n12 * n33 * n44
-				)
-
-			+n31 * (
-				+n13 * n24 * n42
-				-n14 * n23 * n42
-				+n14 * n22 * n43
-				-n12 * n24 * n43
-				-n13 * n22 * n44
-				+n12 * n23 * n44
-				)
-
-			+n41 * (
-				+n14 * n23 * n32
-				-n13 * n24 * n32
-				-n14 * n22 * n33
-				+n12 * n24 * n33
-				+n13 * n22 * n34
-				-n12 * n23 * n34
-				)
+			n41 * (
+		      +n14 * n23 * n32
+		      -n13 * n24 * n32
+		      -n14 * n22 * n33
+		      +n12 * n24 * n33
+		      +n13 * n22 * n34
+		      -n12 * n23 * n34
+		      ) +
+			n42 * (
+		      +n11 * n23 * n34
+		      -n11 * n24 * n33
+		      +n14 * n21 * n33
+		      -n13 * n21 * n34
+		      +n13 * n24 * n31
+		      -n14 * n23 * n31
+		      ) +
+			n43 * (
+		      +n11 * n24 * n32
+		      -n11 * n22 * n34
+		      -n14 * n21 * n32
+		      +n12 * n21 * n34
+		      +n14 * n22 * n31
+		      -n12 * n24 * n31
+		      ) +
+		    n44 * (
+		      -n13 * n22 * n31
+		      -n11 * n23 * n32
+		      +n11 * n22 * n33
+		      +n13 * n21 * n32
+		      -n12 * n21 * n33
+		      +n12 * n23 * n31
+		      )
 
 		);