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author | Karl Shaffer <karlshaffer@google.com> | 2023-08-10 22:35:48 +0000 |
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committer | Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com> | 2023-08-10 22:35:48 +0000 |
commit | 5484895ffd3d0c8337d159667cafc127c459f677 (patch) | |
tree | ace24ba4307d4978ee3134f7da671a77ad172da0 /src/main/java/org/apache/commons/math3/analysis/interpolation/NevilleInterpolator.java | |
parent | bbf9548f049f99fd8e5a593baae983532dd983f4 (diff) | |
parent | b3715644fba79ef08acd9a2e157d078865281767 (diff) | |
download | apache-commons-math-5484895ffd3d0c8337d159667cafc127c459f677.tar.gz |
Check-in commons-math 3.6.1 am: 1354beaf45 am: 0018f64b87 am: b3715644fb
Original change: https://android-review.googlesource.com/c/platform/external/apache-commons-math/+/2702413
Change-Id: I5ad9b2a0822d668b5b6a62933c6d4c1f0b802001
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>
Diffstat (limited to 'src/main/java/org/apache/commons/math3/analysis/interpolation/NevilleInterpolator.java')
-rw-r--r-- | src/main/java/org/apache/commons/math3/analysis/interpolation/NevilleInterpolator.java | 60 |
1 files changed, 60 insertions, 0 deletions
diff --git a/src/main/java/org/apache/commons/math3/analysis/interpolation/NevilleInterpolator.java b/src/main/java/org/apache/commons/math3/analysis/interpolation/NevilleInterpolator.java new file mode 100644 index 0000000..6b47451 --- /dev/null +++ b/src/main/java/org/apache/commons/math3/analysis/interpolation/NevilleInterpolator.java @@ -0,0 +1,60 @@ +/* + * 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.analysis.interpolation; + +import java.io.Serializable; + +import org.apache.commons.math3.analysis.polynomials.PolynomialFunctionLagrangeForm; +import org.apache.commons.math3.exception.DimensionMismatchException; +import org.apache.commons.math3.exception.NumberIsTooSmallException; +import org.apache.commons.math3.exception.NonMonotonicSequenceException; + +/** + * Implements the <a href="http://mathworld.wolfram.com/NevillesAlgorithm.html"> + * Neville's Algorithm</a> for interpolation of real univariate functions. For + * reference, see <b>Introduction to Numerical Analysis</b>, ISBN 038795452X, + * chapter 2. + * <p> + * The actual code of Neville's algorithm is in PolynomialFunctionLagrangeForm, + * this class provides an easy-to-use interface to it.</p> + * + * @since 1.2 + */ +public class NevilleInterpolator implements UnivariateInterpolator, + Serializable { + + /** serializable version identifier */ + static final long serialVersionUID = 3003707660147873733L; + + /** + * Computes an interpolating function for the data set. + * + * @param x Interpolating points. + * @param y Interpolating values. + * @return a function which interpolates the data set + * @throws DimensionMismatchException if the array lengths are different. + * @throws NumberIsTooSmallException if the number of points is less than 2. + * @throws NonMonotonicSequenceException if two abscissae have the same + * value. + */ + public PolynomialFunctionLagrangeForm interpolate(double x[], double y[]) + throws DimensionMismatchException, + NumberIsTooSmallException, + NonMonotonicSequenceException { + return new PolynomialFunctionLagrangeForm(x, y); + } +} |