Update Simplex.java

src/Simplex.java

@@ -162,7 +162,7 @@ public class Simplex {
 
     int ligneSortante(Matrix mat, int y) {
         int id = 0;
-        while (mat.getData(id, y) < 0) {
+        while (mat.getData(id, y) <= 0) {
             id++;
         }
         double tmp = mat.getData(id, mat.getY() - 1) / mat.getData(id, y);