1 /* 2 * Licensed to the Apache Software Foundation (ASF) under one or more 3 * contributor license agreements. See the NOTICE file distributed with 4 * this work for additional information regarding copyright ownership. 5 * The ASF licenses this file to You under the Apache License, Version 2.0 6 * (the "License"); you may not use this file except in compliance with 7 * the License. You may obtain a copy of the License at 8 * 9 * http://www.apache.org/licenses/LICENSE-2.0 10 * 11 * Unless required by applicable law or agreed to in writing, software 12 * distributed under the License is distributed on an "AS IS" BASIS, 13 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 14 * See the License for the specific language governing permissions and 15 * limitations under the License. 16 */ 17 package org.apache.commons.numbers.field; 18 19 /** 20 * {@link Double} field. 21 */ 22 public final class FP64Field extends AbstractField<FP64> { 23 /** 0d. */ 24 private static final FP64 ZERO = FP64.of(0d); 25 /** 1d. */ 26 private static final FP64 ONE = FP64.of(1d); 27 /** Singleton. */ 28 private static final FP64Field INSTANCE = new FP64Field(); 29 30 /** Singleton. */ 31 private FP64Field() {} 32 33 /** 34 * Get the field instance. 35 * 36 * @return the field instance. 37 */ 38 public static FP64Field get() { 39 return INSTANCE; 40 } 41 42 /** {@inheritDoc} */ 43 @Override 44 public FP64 one() { 45 return ONE; 46 } 47 48 /** {@inheritDoc} */ 49 @Override 50 public FP64 zero() { 51 return ZERO; 52 } 53 }