From f7447355116d795f7181068d5638e950c9de905b Mon Sep 17 00:00:00 2001
From: Carl-Martin Pfeiler <carl-martin.pfeiler@asc.tuwien.ac.at>
Date: Wed, 1 Apr 2020 04:08:47 +0200
Subject: [PATCH] BUG in KW1 fixed. (also influences KW2(AB))

---
 integrators/kw1.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/integrators/kw1.py b/integrators/kw1.py
index 0b7ebf6..cbc8676 100644
--- a/integrators/kw1.py
+++ b/integrators/kw1.py
@@ -199,7 +199,7 @@ class KW1(_integrator._Integrator, \
 
     ### lf_iter begin
     rhs_iter_cf = -self._DerivLinearTerms_pi()
-    rhs_iter_cf = -self._DerivNonLinearTerms_Pi()
+    rhs_iter_cf -= self._DerivNonLinearTerms_Pi()
 
     self._f_iter_parts = LinearForm(self._X)
     self._f_iter_parts += SymbolicLFI(rhs_iter_cf.Compile( \
-- 
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