1 files changed, 3 insertions, 0 deletions
diff --git a/Week7/src/polynomial/Polynomial.java b/Week7/src/polynomial/Polynomial.java
index 40c1448..86f060b 100644
--- a/Week7/src/polynomial/Polynomial.java
+++ b/Week7/src/polynomial/Polynomial.java
@@ -101,6 +101,9 @@ public class Polynomial {
      * @param t the term to add
      */
     private void plus(Term t) {
+        if (t.getCoef() == 0)
+            return;
+        
         Iterator<Term> iter = terms.iterator();
         while (iter.hasNext()) {
             Term this_t = iter.next();