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+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You under the Apache License, Version 2.0
+ * (the "License"); you may not use this file except in compliance with
+ * the License.  You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+/**
+ * Parent package for common numerical analysis procedures, including root finding, function
+ * interpolation and integration. Note that optimization (i.e. minimization and maximization) is a
+ * separate top-level package.
+ *
+ * <p>Function interfaces are intended to be implemented by user code to represent domain problems.
+ * The algorithms provided by the library operate on these functions to find their roots, or
+ * integrate them, or ... Functions can be multivariate or univariate, real vectorial or
+ * matrix-valued, and they can be differentiable or not.
+ */
+package org.apache.commons.math3.analysis;