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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.
 */
package org.apache.commons.math3;

/**
 * Interface representing a field.
 * 

* Classes implementing this interface will often be singletons. *

* @param the type of the field elements * @see FieldElement * @since 2.0 */ public interface Field { /** Get the additive identity of the field. *

* The additive identity is the element e0 of the field such that * for all elements a of the field, the equalities a + e0 = * e0 + a = a hold. *

* @return additive identity of the field */ T getZero(); /** Get the multiplicative identity of the field. *

* The multiplicative identity is the element e1 of the field such that * for all elements a of the field, the equalities a × e1 = * e1 × a = a hold. *

* @return multiplicative identity of the field */ T getOne(); /** * Returns the runtime class of the FieldElement. * * @return The {@code Class} object that represents the runtime * class of this object. */ Class> getRuntimeClass(); }




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