diff --git a/PYTHON/Display/print_array.py b/PYTHON/Display/print_array.py
index c3aa137..29c5e98 100644
--- a/PYTHON/Display/print_array.py
+++ b/PYTHON/Display/print_array.py
@@ -1,10 +1,17 @@
 #==========================================================================
-def print_array(a):
+def print_array(*args):
 #--------------------------------------------------------------------------
 
+  if len((args)) == 1:
+    a      = args[0]
+    format = "%7.2f"
+  else:  
+    a      = args[0]
+    format = args[1]
+
   print('Array ['+('%d' %a.shape[0])+']')
   rows = a.shape[0]
   for i in range(0,rows):
-    print('%15.8e ' %a[i])
+    print(format %a[i])
 
   return  # end of function
\ No newline at end of file
diff --git a/PYTHON/Display/print_matrix.py b/PYTHON/Display/print_matrix.py
index ebe1264..21803a5 100644
--- a/PYTHON/Display/print_matrix.py
+++ b/PYTHON/Display/print_matrix.py
@@ -1,17 +1,21 @@
 #==========================================================================
-def print_matrix(a):
+def print_matrix(*args):
 #--------------------------------------------------------------------------
 
+  if len((args)) == 1:
+    a      = args[0]
+    format = "%7.2f"
+  else:  
+    a      = args[0]
+    format = args[1]
+
   print('Matrix['+('%d' %a.shape[0])+']['+('%d' %a.shape[1])+']')
   rows = a.shape[0]
   cols = a.shape[1]
 
   for i in range(0,rows):
     for j in range(0,cols):
-      if a[i,j] == 0:
-        print('    .  ', end='')
-      else:
-        print(('%7.2f' %a[i,j]), end='')
+      print((format %a[i,j]), end='')
     print('')
   print('')