Index: trunk/psLib/src/dataManip/psFunctions.c
===================================================================
--- trunk/psLib/src/dataManip/psFunctions.c	(revision 751)
+++ trunk/psLib/src/dataManip/psFunctions.c	(revision 773)
@@ -234,4 +234,8 @@
     float xSum = 1.0;
 
+    if (myPoly->n == 0) {
+        return(1.0);
+    }
+
     for (loop_x=0;loop_x<myPoly->n;loop_x++) {
         polySum+= xSum * myPoly->coeff[loop_x];
@@ -519,4 +523,8 @@
     double xSum = 1.0;
 
+    if (myPoly->n == 0) {
+        return(1.0);
+    }
+
     for (loop_x=0;loop_x<myPoly->n;loop_x++) {
         polySum+= xSum * myPoly->coeff[loop_x];