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-rw-r--r--unsupported/test/NonLinearOptimization.cpp2
1 files changed, 0 insertions, 2 deletions
diff --git a/unsupported/test/NonLinearOptimization.cpp b/unsupported/test/NonLinearOptimization.cpp
index 6a5ed057f..1d682dd83 100644
--- a/unsupported/test/NonLinearOptimization.cpp
+++ b/unsupported/test/NonLinearOptimization.cpp
@@ -12,8 +12,6 @@
// It is intended to be done for this test only.
#include <Eigen/src/Core/util/DisableStupidWarnings.h>
-using std::sqrt;
-
// tolerance for chekcing number of iterations
#define LM_EVAL_COUNT_TOL 4/3