Update MatchingPowers.m2

Macaulay2 · Oct 7, 2024 · 7522fda · 7522fda
1 parent 73272f5
commit 7522fda
Showing 1 changed file with 1 addition and 0 deletions.
diff --git a/M2/Macaulay2/packages/MatchingPowers.m2 b/M2/Macaulay2/packages/MatchingPowers.m2
@@ -189,6 +189,7 @@ matchingProduct (Ideal,Ideal) := (I,J) -> (
                    if (set support u)*(set support v)===set{} then l=append(l,u*v);
               );
         );
+        if ideal(l)==ideal(0_ZZ) then return ideal(0_S);
         trim ideal(l)
 );