Intersection-Matrix-Calculation.md

@@ -173,12 +173,25 @@ The IM for a Polygon and a LineString (not LinearRing), in that order, that do i
 I ∩ I = 1, if at least one line segment of the LineString enters the interior of the Polygon, else .false (Note this value cannot be 0.)  
 I ∩ B = 0, if the interior of one line segment of the LineString is inside the polygon, else .false  
 I ∩ E = 2  
-B ∩ I = 1, if one line segment of the boundary of the Polygon overlaps one line segment from the LineString, else 0, if the interior of the LineString segments touch the Polygon at most a set of points, else .false    
+B ∩ I = 1, if one line segment of the boundary of the Polygon overlaps one line segment from the LineString, else 0, if the interior of the LineString touches the Polygon at most at a set of points, else .false    
 B ∩ B = 0, if the endpoints of the LineString touch the line segments of the boundary at one or more points, else .false   
 B ∩ E = 1    
 E ∩ I = 1, if part of one line segment of the LineString lies outside of the Polygon, else .false (Note this value cannot be 0.)    
 E ∩ B = 0, if at least one endpoint of the LineString lies outside of the Polygon, else .false     
 E ∩ E = 2  
+If the order of the two geometries is reversed, the intersection matrix would be the transpose of the above.  
+
+The IM for a Polygon and a LinearRing, in that order, that do intersect is  
+I ∩ I = 1, if at least one line segment of the LinearRing enters the interior of the Polygon, else .false (Note this value cannot be 0.)  
+I ∩ B = .false  
+I ∩ E = 2  
+B ∩ I = 1, if one line segment of the boundary of the Polygon overlaps one line segment from the LinearRing, else 0, if the interior of the LinearRing touches the Polygon at most at a set of points, else .false    
+B ∩ B = .false   
+B ∩ E = 1, if the boundary of the Polygon is not the same as the LinearRing, else .false  
+E ∩ I = 1, if part of one line segment of the LinearRing lies outside of the Polygon, else .false (Note this value cannot be 0.)    
+E ∩ B = .false     
+E ∩ E = 2  
+If the order of the two geometries is reversed, the intersection matrix would be the transpose of the above.  
 
 
 **The dimension of the intersection of two geometries, both of which are dimension .two, is either .zero,.one, .two., or .false**