diff --git a/src/main/java/org/apache/commons/math3/analysis/function/Constant.java b/src/main/java/org/apache/commons/math3/analysis/function/Constant.java
index 708a7afb4..1e8025ac4 100644
--- a/src/main/java/org/apache/commons/math3/analysis/function/Constant.java
+++ b/src/main/java/org/apache/commons/math3/analysis/function/Constant.java
@@ -18,8 +18,6 @@
 package org.apache.commons.math3.analysis.function;
 
 import org.apache.commons.math3.analysis.DifferentiableUnivariateFunction;
-import org.apache.commons.math3.analysis.FunctionUtils;
-import org.apache.commons.math3.analysis.UnivariateFunction;
 import org.apache.commons.math3.analysis.differentiation.DerivativeStructure;
 import org.apache.commons.math3.analysis.differentiation.UnivariateDifferentiableFunction;
 
diff --git a/src/main/java/org/apache/commons/math3/analysis/function/Cosh.java b/src/main/java/org/apache/commons/math3/analysis/function/Cosh.java
index 7d279d75b..d8347ea16 100644
--- a/src/main/java/org/apache/commons/math3/analysis/function/Cosh.java
+++ b/src/main/java/org/apache/commons/math3/analysis/function/Cosh.java
@@ -18,8 +18,6 @@
 package org.apache.commons.math3.analysis.function;
 
 import org.apache.commons.math3.analysis.DifferentiableUnivariateFunction;
-import org.apache.commons.math3.analysis.FunctionUtils;
-import org.apache.commons.math3.analysis.UnivariateFunction;
 import org.apache.commons.math3.analysis.differentiation.DerivativeStructure;
 import org.apache.commons.math3.analysis.differentiation.UnivariateDifferentiableFunction;
 import org.apache.commons.math3.util.FastMath;
diff --git a/src/main/java/org/apache/commons/math3/analysis/function/Identity.java b/src/main/java/org/apache/commons/math3/analysis/function/Identity.java
index 5e7f1e5df..23df27616 100644
--- a/src/main/java/org/apache/commons/math3/analysis/function/Identity.java
+++ b/src/main/java/org/apache/commons/math3/analysis/function/Identity.java
@@ -18,8 +18,6 @@
 package org.apache.commons.math3.analysis.function;
 
 import org.apache.commons.math3.analysis.DifferentiableUnivariateFunction;
-import org.apache.commons.math3.analysis.FunctionUtils;
-import org.apache.commons.math3.analysis.UnivariateFunction;
 import org.apache.commons.math3.analysis.differentiation.DerivativeStructure;
 import org.apache.commons.math3.analysis.differentiation.UnivariateDifferentiableFunction;
 
diff --git a/src/main/java/org/apache/commons/math3/analysis/function/Minus.java b/src/main/java/org/apache/commons/math3/analysis/function/Minus.java
index 28e9e80d7..ff77e9d86 100644
--- a/src/main/java/org/apache/commons/math3/analysis/function/Minus.java
+++ b/src/main/java/org/apache/commons/math3/analysis/function/Minus.java
@@ -18,8 +18,6 @@
 package org.apache.commons.math3.analysis.function;
 
 import org.apache.commons.math3.analysis.DifferentiableUnivariateFunction;
-import org.apache.commons.math3.analysis.FunctionUtils;
-import org.apache.commons.math3.analysis.UnivariateFunction;
 import org.apache.commons.math3.analysis.differentiation.DerivativeStructure;
 import org.apache.commons.math3.analysis.differentiation.UnivariateDifferentiableFunction;
 
diff --git a/src/main/java/org/apache/commons/math3/analysis/function/Sin.java b/src/main/java/org/apache/commons/math3/analysis/function/Sin.java
index f322ae901..70c46fcb7 100644
--- a/src/main/java/org/apache/commons/math3/analysis/function/Sin.java
+++ b/src/main/java/org/apache/commons/math3/analysis/function/Sin.java
@@ -18,8 +18,6 @@
 package org.apache.commons.math3.analysis.function;
 
 import org.apache.commons.math3.analysis.DifferentiableUnivariateFunction;
-import org.apache.commons.math3.analysis.FunctionUtils;
-import org.apache.commons.math3.analysis.UnivariateFunction;
 import org.apache.commons.math3.analysis.differentiation.DerivativeStructure;
 import org.apache.commons.math3.analysis.differentiation.UnivariateDifferentiableFunction;
 import org.apache.commons.math3.util.FastMath;
diff --git a/src/main/java/org/apache/commons/math3/analysis/function/Sinh.java b/src/main/java/org/apache/commons/math3/analysis/function/Sinh.java
index f396128d4..299f949fc 100644
--- a/src/main/java/org/apache/commons/math3/analysis/function/Sinh.java
+++ b/src/main/java/org/apache/commons/math3/analysis/function/Sinh.java
@@ -18,8 +18,6 @@
 package org.apache.commons.math3.analysis.function;
 
 import org.apache.commons.math3.analysis.DifferentiableUnivariateFunction;
-import org.apache.commons.math3.analysis.FunctionUtils;
-import org.apache.commons.math3.analysis.UnivariateFunction;
 import org.apache.commons.math3.analysis.differentiation.DerivativeStructure;
 import org.apache.commons.math3.analysis.differentiation.UnivariateDifferentiableFunction;
 import org.apache.commons.math3.util.FastMath;