Index: Core/Components/src/Core.Components.DotSpatial/Projections/WorldFile.cs
===================================================================
diff -u -r67284323e2785c651633d9c52049ba12a9c70e6a -r29aa0d31363b25d9aa3f8699313c990277c7a95e
--- Core/Components/src/Core.Components.DotSpatial/Projections/WorldFile.cs	(.../WorldFile.cs)	(revision 67284323e2785c651633d9c52049ba12a9c70e6a)
+++ Core/Components/src/Core.Components.DotSpatial/Projections/WorldFile.cs	(.../WorldFile.cs)	(revision 29aa0d31363b25d9aa3f8699313c990277c7a95e)
@@ -249,7 +249,7 @@
             {
                 get
                 {
-                    return Determinant != 0d;
+                    return Math.Abs(Determinant) > double.Epsilon;
                 }
             }