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.nabla.forward;
18
19 import org.apache.commons.math3.util.FastMath;
20 import org.apache.commons.nabla.AbstractMathTest;
21 import org.junit.Test;
22
23 public class Expm1GeneratorTest extends AbstractMathTest {
24
25 @Test
26 public void testReference(){
27 checkReference(new ReferenceFunction() {
28 public double value(double t) { return FastMath.expm1(t); }
29 public double firstDerivative(double t) { return 1 + FastMath.expm1(t); }
30 }, -5, 5, 50, 7.0e-15);
31 }
32
33 }