From c8f16f16fa4fb84b582553beb033eece3467e77f Mon Sep 17 00:00:00 2001
From: Martin	Diehl <m.diehl@mpie.de>
Date: Wed, 6 Aug 2014 20:07:47 +0000
Subject: [PATCH] fixed bug in hill criterion

---
 processing/misc/yieldSurface.py | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/processing/misc/yieldSurface.py b/processing/misc/yieldSurface.py
index cecda9157..87eafa99e 100755
--- a/processing/misc/yieldSurface.py
+++ b/processing/misc/yieldSurface.py
@@ -30,8 +30,8 @@ def asFullTensor(voigt):
 
 
 def Hill48(x, F,G,H,L,M,N):
-  a = F*(x[1]-x[2])**2 + G*(x[2]-x[0])**2 + H*(x[0]-x[1])** + \
-         2*L*x[4]**2 + 2*M*x[5]**2 + 2*N*x[3]**2 -1.
+  a = F*(x[1]-x[2])**2.0 + G*(x[2]-x[0])**2.0 + H*(x[0]-x[1])**2.0 + \
+         2.0*L*x[4]**2.0 + 2.0*M*x[5]**2.0 + 2.0*N*x[3]**2.0 -1.0
   return a.ravel()