/*
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* Licensed to the Apache Software Foundation (ASF) Under one or more
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* contributor license agreements. See the NOTICE file distributed with
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* this work for Additional information regarding copyright ownership.
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* The ASF licenses this file to You Under the Apache License, Version 2.0
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* (the "License"); you may not use this file except in compliance with
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* the License. You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed Under the License is distributed on an "AS Is" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations Under the License.
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*/
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namespace HH.WMS.Utils.NPOI.SS.Formula.Functions
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{
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/*
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* Implementation of Excel function SUMX2PY2()<p/>
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*
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* Calculates the sum of squares in two arrays of the same size.<br/>
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* <b>Syntax</b>:<br/>
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* <b>SUMX2PY2</b>(<b>arrayX</b>, <b>arrayY</b>)<p/>
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*
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* result = Σ<sub>i: 0..n</sub>(x<sub>i</sub><sup>2</sup>+y<sub>i</sub><sup>2</sup>)
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*
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* @author Amol S. Deshmukh < amolweb at ya hoo dot com >
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*/
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public class Sumx2py2 : XYNumericFunction
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{
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public class Accumulator3 : Accumulator
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{
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public double Accumulate(double x, double y)
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{
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return x * x + y * y;
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}
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}
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private static Accumulator XSquaredPlusYSquaredAccumulator = new Accumulator3();
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public override Accumulator CreateAccumulator() {
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return XSquaredPlusYSquaredAccumulator;
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}
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}
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}
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