From b889a7884dda6eff11463bc6e00470d004619cd2 Mon Sep 17 00:00:00 2001
From: Oliver Sander <oliver.sander@tu-dresden.de>
Date: Fri, 16 Oct 2015 17:06:07 +0200
Subject: [PATCH] Use smaller step size for the FD approximation
Use 1e-8: The square root of the machine precision is said to be the best choice.
---
test/localprojectedfefunctiontest.cc | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/test/localprojectedfefunctiontest.cc b/test/localprojectedfefunctiontest.cc
index cc2e5adc..ff0287a7 100644
--- a/test/localprojectedfefunctiontest.cc
+++ b/test/localprojectedfefunctiontest.cc
@@ -40,7 +40,7 @@ auto
evaluateDerivativeFD(const LocalFunction& f, const Dune::FieldVector<ctype, dim>& local)
-> decltype(f.evaluateDerivative(local))
{
- double eps = 1e-6;
+ double eps = 1e-8;
static const int embeddedDim = LocalFunction::TargetSpace::embeddedDim;
Dune::FieldMatrix<ctype, embeddedDim, dim> result;
--
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