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<h2>Java Reference</h2>
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<li><a href="../java/namespacecom_1_1google_1_1ortools_1_1sat.html">CP-SAT</a></li>
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<div class="title">LinearExpr.java</div> </div>
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<a href="LinearExpr_8java.html">Go to the documentation of this file.</a><div class="fragment"><div class="line"><a name="l00001"></a><span class="lineno"> 1</span> <span class="comment">// Copyright 2010-2018 Google LLC</span></div>
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<div class="line"><a name="l00002"></a><span class="lineno"> 2</span> <span class="comment">// Licensed under the Apache License, Version 2.0 (the "License");</span></div>
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<div class="line"><a name="l00003"></a><span class="lineno"> 3</span> <span class="comment">// you may not use this file except in compliance with the License.</span></div>
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<div class="line"><a name="l00004"></a><span class="lineno"> 4</span> <span class="comment">// You may obtain a copy of the License at</span></div>
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<div class="line"><a name="l00005"></a><span class="lineno"> 5</span> <span class="comment">//</span></div>
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<div class="line"><a name="l00006"></a><span class="lineno"> 6</span> <span class="comment">// http://www.apache.org/licenses/LICENSE-2.0</span></div>
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<div class="line"><a name="l00007"></a><span class="lineno"> 7</span> <span class="comment">//</span></div>
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<div class="line"><a name="l00008"></a><span class="lineno"> 8</span> <span class="comment">// Unless required by applicable law or agreed to in writing, software</span></div>
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<div class="line"><a name="l00009"></a><span class="lineno"> 9</span> <span class="comment">// distributed under the License is distributed on an "AS IS" BASIS,</span></div>
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<div class="line"><a name="l00010"></a><span class="lineno"> 10</span> <span class="comment">// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.</span></div>
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<div class="line"><a name="l00011"></a><span class="lineno"> 11</span> <span class="comment">// See the License for the specific language governing permissions and</span></div>
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<div class="line"><a name="l00012"></a><span class="lineno"> 12</span> <span class="comment">// limitations under the License.</span></div>
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<div class="line"><a name="l00013"></a><span class="lineno"> 13</span>  </div>
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<div class="line"><a name="l00014"></a><span class="lineno"> 14</span> <span class="keyword">package </span>com.google.ortools.sat;</div>
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<div class="line"><a name="l00015"></a><span class="lineno"> 15</span>  </div>
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<div class="line"><a name="l00017"></a><span class="lineno"><a class="line" href="interfacecom_1_1google_1_1ortools_1_1sat_1_1LinearExpr.html"> 17</a></span> <span class="keyword">public</span> <span class="keyword">interface </span><a class="code" href="interfacecom_1_1google_1_1ortools_1_1sat_1_1LinearExpr.html">LinearExpr</a> {</div>
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<div class="line"><a name="l00019"></a><span class="lineno"><a class="line" href="interfacecom_1_1google_1_1ortools_1_1sat_1_1LinearExpr.html#a59f9cb76db051cd784a42f38220f896d"> 19</a></span>  <span class="keywordtype">int</span> <a class="code" href="interfacecom_1_1google_1_1ortools_1_1sat_1_1LinearExpr.html#a59f9cb76db051cd784a42f38220f896d">numElements</a>();</div>
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<div class="line"><a name="l00020"></a><span class="lineno"> 20</span>  </div>
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<div class="line"><a name="l00022"></a><span class="lineno"><a class="line" href="interfacecom_1_1google_1_1ortools_1_1sat_1_1LinearExpr.html#aff988e01e71c0dd3c11e6f970a209520"> 22</a></span>  <a class="code" href="classcom_1_1google_1_1ortools_1_1sat_1_1IntVar.html">IntVar</a> <a class="code" href="interfacecom_1_1google_1_1ortools_1_1sat_1_1LinearExpr.html#aff988e01e71c0dd3c11e6f970a209520">getVariable</a>(<span class="keywordtype">int</span> index);</div>
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<div class="line"><a name="l00023"></a><span class="lineno"> 23</span>  </div>
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<div class="line"><a name="l00025"></a><span class="lineno"><a class="line" href="interfacecom_1_1google_1_1ortools_1_1sat_1_1LinearExpr.html#a2c77626134edecc47b69efe661ea1904"> 25</a></span>  <span class="keywordtype">long</span> <a class="code" href="interfacecom_1_1google_1_1ortools_1_1sat_1_1LinearExpr.html#a2c77626134edecc47b69efe661ea1904">getCoefficient</a>(<span class="keywordtype">int</span> index);</div>
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<div class="line"><a name="l00026"></a><span class="lineno"> 26</span>  </div>
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<div class="line"><a name="l00028"></a><span class="lineno"><a class="line" href="interfacecom_1_1google_1_1ortools_1_1sat_1_1LinearExpr.html#aafaf7ba9f072b09e687ed03fb4d98b4a"> 28</a></span>  <span class="keyword">static</span> <a class="code" href="interfacecom_1_1google_1_1ortools_1_1sat_1_1LinearExpr.html">LinearExpr</a> <a class="code" href="interfacecom_1_1google_1_1ortools_1_1sat_1_1LinearExpr.html#aafaf7ba9f072b09e687ed03fb4d98b4a">sum</a>(<a class="code" href="classcom_1_1google_1_1ortools_1_1sat_1_1IntVar.html">IntVar</a>[] variables) {</div>
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<div class="line"><a name="l00029"></a><span class="lineno"> 29</span>  <span class="keywordflow">return</span> <span class="keyword">new</span> <a class="code" href="classcom_1_1google_1_1ortools_1_1sat_1_1SumOfVariables.html">SumOfVariables</a>(variables);</div>
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<div class="line"><a name="l00030"></a><span class="lineno"> 30</span>  }</div>
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<div class="line"><a name="l00031"></a><span class="lineno"> 31</span>  </div>
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<div class="line"><a name="l00033"></a><span class="lineno"><a class="line" href="interfacecom_1_1google_1_1ortools_1_1sat_1_1LinearExpr.html#add2c1c4ca7d2bd87e429a5044df28417"> 33</a></span>  <span class="keyword">static</span> <a class="code" href="interfacecom_1_1google_1_1ortools_1_1sat_1_1LinearExpr.html">LinearExpr</a> <a class="code" href="interfacecom_1_1google_1_1ortools_1_1sat_1_1LinearExpr.html#add2c1c4ca7d2bd87e429a5044df28417">scalProd</a>(<a class="code" href="classcom_1_1google_1_1ortools_1_1sat_1_1IntVar.html">IntVar</a>[] variables, <span class="keywordtype">long</span>[] coefficients) {</div>
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<div class="line"><a name="l00034"></a><span class="lineno"> 34</span>  <span class="keywordflow">return</span> <span class="keyword">new</span> <a class="code" href="classcom_1_1google_1_1ortools_1_1sat_1_1ScalProd.html">ScalProd</a>(variables, coefficients);</div>
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<div class="line"><a name="l00035"></a><span class="lineno"> 35</span>  }</div>
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<div class="line"><a name="l00036"></a><span class="lineno"> 36</span>  </div>
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<div class="line"><a name="l00038"></a><span class="lineno"><a class="line" href="interfacecom_1_1google_1_1ortools_1_1sat_1_1LinearExpr.html#adc5cb20cefb7b9bfa251adc4a57eb2bb"> 38</a></span>  <span class="keyword">static</span> <a class="code" href="interfacecom_1_1google_1_1ortools_1_1sat_1_1LinearExpr.html">LinearExpr</a> <a class="code" href="interfacecom_1_1google_1_1ortools_1_1sat_1_1LinearExpr.html#adc5cb20cefb7b9bfa251adc4a57eb2bb">scalProd</a>(<a class="code" href="classcom_1_1google_1_1ortools_1_1sat_1_1IntVar.html">IntVar</a>[] variables, <span class="keywordtype">int</span>[] coefficients) {</div>
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<div class="line"><a name="l00039"></a><span class="lineno"> 39</span>  <span class="keywordtype">long</span>[] tmp = <span class="keyword">new</span> <span class="keywordtype">long</span>[coefficients.length];</div>
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<div class="line"><a name="l00040"></a><span class="lineno"> 40</span>  <span class="keywordflow">for</span> (<span class="keywordtype">int</span> i = 0; i < coefficients.length; ++i) {</div>
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<div class="line"><a name="l00041"></a><span class="lineno"> 41</span>  tmp[i] = coefficients[i];</div>
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<div class="line"><a name="l00042"></a><span class="lineno"> 42</span>  }</div>
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<div class="line"><a name="l00043"></a><span class="lineno"> 43</span>  <span class="keywordflow">return</span> <span class="keyword">new</span> <a class="code" href="classcom_1_1google_1_1ortools_1_1sat_1_1ScalProd.html">ScalProd</a>(variables, tmp);</div>
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<div class="line"><a name="l00044"></a><span class="lineno"> 44</span>  }</div>
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<div class="line"><a name="l00045"></a><span class="lineno"> 45</span>  </div>
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<div class="line"><a name="l00047"></a><span class="lineno"><a class="line" href="interfacecom_1_1google_1_1ortools_1_1sat_1_1LinearExpr.html#ac3f3f3257983820bff7b607f2ba710d0"> 47</a></span>  <span class="keyword">static</span> <a class="code" href="interfacecom_1_1google_1_1ortools_1_1sat_1_1LinearExpr.html">LinearExpr</a> <a class="code" href="interfacecom_1_1google_1_1ortools_1_1sat_1_1LinearExpr.html#ac3f3f3257983820bff7b607f2ba710d0">term</a>(<a class="code" href="classcom_1_1google_1_1ortools_1_1sat_1_1IntVar.html">IntVar</a> variable, <span class="keywordtype">long</span> coefficient) {</div>
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<div class="line"><a name="l00048"></a><span class="lineno"> 48</span>  <span class="keywordflow">return</span> <span class="keyword">new</span> <a class="code" href="classcom_1_1google_1_1ortools_1_1sat_1_1ScalProd.html">ScalProd</a>(<span class="keyword">new</span> <a class="code" href="classcom_1_1google_1_1ortools_1_1sat_1_1IntVar.html">IntVar</a>[] {variable}, <span class="keyword">new</span> <span class="keywordtype">long</span>[] {coefficient});</div>
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<div class="line"><a name="l00049"></a><span class="lineno"> 49</span>  }</div>
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<div class="line"><a name="l00050"></a><span class="lineno"> 50</span> }</div>
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</div><!-- fragment --></div><!-- contents -->
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<div class="ttc" id="aclasscom_1_1google_1_1ortools_1_1sat_1_1SumOfVariables_html"><div class="ttname"><a href="classcom_1_1google_1_1ortools_1_1sat_1_1SumOfVariables.html">com.google.ortools.sat.SumOfVariables</a></div><div class="ttdoc">A linear expression interface that can be parsed.</div><div class="ttdef"><b>Definition:</b> <a href="SumOfVariables_8java_source.html#l00017">SumOfVariables.java:17</a></div></div>
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<div class="ttc" id="ainterfacecom_1_1google_1_1ortools_1_1sat_1_1LinearExpr_html_a2c77626134edecc47b69efe661ea1904"><div class="ttname"><a href="interfacecom_1_1google_1_1ortools_1_1sat_1_1LinearExpr.html#a2c77626134edecc47b69efe661ea1904">com.google.ortools.sat.LinearExpr.getCoefficient</a></div><div class="ttdeci">long getCoefficient(int index)</div><div class="ttdoc">Returns the ith coefficient.</div></div>
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<div class="ttc" id="aclasscom_1_1google_1_1ortools_1_1sat_1_1ScalProd_html"><div class="ttname"><a href="classcom_1_1google_1_1ortools_1_1sat_1_1ScalProd.html">com.google.ortools.sat.ScalProd</a></div><div class="ttdoc">A linear expression interface that can be parsed.</div><div class="ttdef"><b>Definition:</b> <a href="ScalProd_8java_source.html#l00017">ScalProd.java:17</a></div></div>
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<div class="ttc" id="ainterfacecom_1_1google_1_1ortools_1_1sat_1_1LinearExpr_html_a59f9cb76db051cd784a42f38220f896d"><div class="ttname"><a href="interfacecom_1_1google_1_1ortools_1_1sat_1_1LinearExpr.html#a59f9cb76db051cd784a42f38220f896d">com.google.ortools.sat.LinearExpr.numElements</a></div><div class="ttdeci">int numElements()</div><div class="ttdoc">Returns the number of elements in the interface.</div></div>
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<div class="ttc" id="ainterfacecom_1_1google_1_1ortools_1_1sat_1_1LinearExpr_html_ac3f3f3257983820bff7b607f2ba710d0"><div class="ttname"><a href="interfacecom_1_1google_1_1ortools_1_1sat_1_1LinearExpr.html#ac3f3f3257983820bff7b607f2ba710d0">com.google.ortools.sat.LinearExpr.term</a></div><div class="ttdeci">static LinearExpr term(IntVar variable, long coefficient)</div><div class="ttdoc">Creates a linear term (var * coefficient).</div><div class="ttdef"><b>Definition:</b> <a href="LinearExpr_8java_source.html#l00047">LinearExpr.java:47</a></div></div>
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<div class="ttc" id="ainterfacecom_1_1google_1_1ortools_1_1sat_1_1LinearExpr_html_add2c1c4ca7d2bd87e429a5044df28417"><div class="ttname"><a href="interfacecom_1_1google_1_1ortools_1_1sat_1_1LinearExpr.html#add2c1c4ca7d2bd87e429a5044df28417">com.google.ortools.sat.LinearExpr.scalProd</a></div><div class="ttdeci">static LinearExpr scalProd(IntVar[] variables, long[] coefficients)</div><div class="ttdoc">Creates a scalar product.</div><div class="ttdef"><b>Definition:</b> <a href="LinearExpr_8java_source.html#l00033">LinearExpr.java:33</a></div></div>
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<div class="ttc" id="ainterfacecom_1_1google_1_1ortools_1_1sat_1_1LinearExpr_html_adc5cb20cefb7b9bfa251adc4a57eb2bb"><div class="ttname"><a href="interfacecom_1_1google_1_1ortools_1_1sat_1_1LinearExpr.html#adc5cb20cefb7b9bfa251adc4a57eb2bb">com.google.ortools.sat.LinearExpr.scalProd</a></div><div class="ttdeci">static LinearExpr scalProd(IntVar[] variables, int[] coefficients)</div><div class="ttdoc">Creates a scalar product.</div><div class="ttdef"><b>Definition:</b> <a href="LinearExpr_8java_source.html#l00038">LinearExpr.java:38</a></div></div>
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<div class="ttc" id="ainterfacecom_1_1google_1_1ortools_1_1sat_1_1LinearExpr_html_aafaf7ba9f072b09e687ed03fb4d98b4a"><div class="ttname"><a href="interfacecom_1_1google_1_1ortools_1_1sat_1_1LinearExpr.html#aafaf7ba9f072b09e687ed03fb4d98b4a">com.google.ortools.sat.LinearExpr.sum</a></div><div class="ttdeci">static LinearExpr sum(IntVar[] variables)</div><div class="ttdoc">Creates a sum expression.</div><div class="ttdef"><b>Definition:</b> <a href="LinearExpr_8java_source.html#l00028">LinearExpr.java:28</a></div></div>
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<div class="ttc" id="ainterfacecom_1_1google_1_1ortools_1_1sat_1_1LinearExpr_html_aff988e01e71c0dd3c11e6f970a209520"><div class="ttname"><a href="interfacecom_1_1google_1_1ortools_1_1sat_1_1LinearExpr.html#aff988e01e71c0dd3c11e6f970a209520">com.google.ortools.sat.LinearExpr.getVariable</a></div><div class="ttdeci">IntVar getVariable(int index)</div><div class="ttdoc">Returns the ith variable.</div></div>
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<div class="ttc" id="aclasscom_1_1google_1_1ortools_1_1sat_1_1IntVar_html"><div class="ttname"><a href="classcom_1_1google_1_1ortools_1_1sat_1_1IntVar.html">com.google.ortools.sat.IntVar</a></div><div class="ttdoc">An integer variable.</div><div class="ttdef"><b>Definition:</b> <a href="java_2com_2google_2ortools_2sat_2IntVar_8java_source.html#l00021">java/com/google/ortools/sat/IntVar.java:21</a></div></div>
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<div class="ttc" id="ainterfacecom_1_1google_1_1ortools_1_1sat_1_1LinearExpr_html"><div class="ttname"><a href="interfacecom_1_1google_1_1ortools_1_1sat_1_1LinearExpr.html">com.google.ortools.sat.LinearExpr</a></div><div class="ttdoc">A linear expression interface that can be parsed.</div><div class="ttdef"><b>Definition:</b> <a href="LinearExpr_8java_source.html#l00017">LinearExpr.java:17</a></div></div>
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