Fix 2nd deriv ordering

FEniCS · Jun 13, 2017 · e82d0dd · e82d0dd
1 parent 4ebf8b7
commit e82d0dd
Showing 1 changed file with 2 additions and 2 deletions.
diff --git a/FIAT/argyris.py b/FIAT/argyris.py
@@ -50,7 +50,7 @@ def __init__(self, ref_el, degree):
                 nodes.append(pd(ref_el, verts[v], alpha))
 
             # second derivatives
-            alphas = [[2, 0], [0, 2], [1, 1]]
+            alphas = [[2, 0], [1, 1], [0, 2]]
             for alpha in alphas:
                 nodes.append(pd(ref_el, verts[v], alpha))
 
@@ -118,7 +118,7 @@ def __init__(self, ref_el):
                 nodes.append(pd(ref_el, verts[v], alpha))
 
             # second derivatives
-            alphas = [[2, 0], [0, 2], [1, 1]]
+            alphas = [[2, 0], [1, 1,], [0, 2]]
             for alpha in alphas:
                 nodes.append(pd(ref_el, verts[v], alpha))