kmath/kmath-tensors/space.kscience.kmath.tensors.api/-tensor-algebra/sum.html

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<div class="main-content" id="content" pageids="kmath-tensors::space.kscience.kmath.tensors.api/TensorAlgebra/sum/space.kscience.kmath.nd.StructureND[TypeParam(bounds=[kotlin.Any?])]#/PointingToDeclaration//-1345790395">
<div class="breadcrumbs"><a href="../../index.html">kmath-tensors</a>/<a href="../index.html">space.kscience.kmath.tensors.api</a>/<a href="index.html">TensorAlgebra</a>/<a href="sum.html">sum</a></div>
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<h1 class="cover"><span><span>sum</span></span></h1>
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<div class="platform-hinted " data-platform-hinted="data-platform-hinted"><div class="content sourceset-depenent-content" data-active="" data-togglable=":kmath-tensors:dokkaHtmlPartial/commonMain"><div class="symbol monospace"><span class="token keyword">abstract </span><span class="token keyword"></span><span class="token keyword">fun </span><a href="../../../kmath-core/space.kscience.kmath.nd/-structure-n-d/index.html">StructureND</a><span class="token operator">&lt;</span><span class="token keyword"></span><a href="index.html">T</a><span class="token operator">&gt;</span><span class="token punctuation">.</span><a href="sum.html"><span class="token function">sum</span></a><span class="token punctuation">(</span><span class="token punctuation">)</span><span class="token operator">: </span><a href="index.html">T</a><span class="top-right-position"><span class="copy-icon"></span><div class="copy-popup-wrapper popup-to-left"><span class="copy-popup-icon"></span><span>Content copied to clipboard</span></div></span></div><h4 class="">Return</h4><p class="paragraph">the sum of all elements in the input tensor.</p><br><div class="symbol monospace"><span class="token keyword">abstract </span><span class="token keyword"></span><span class="token keyword">fun </span><a href="../../../kmath-core/space.kscience.kmath.nd/-structure-n-d/index.html">StructureND</a><span class="token operator">&lt;</span><span class="token keyword"></span><a href="index.html">T</a><span class="token operator">&gt;</span><span class="token punctuation">.</span><a href="sum.html"><span class="token function">sum</span></a><span class="token punctuation">(</span>dim<span class="token operator">: </span><a href="https://kotlinlang.org/api/latest/jvm/stdlib/kotlin/-int/index.html">Int</a><span class="token punctuation">, </span>keepDim<span class="token operator">: </span><a href="https://kotlinlang.org/api/latest/jvm/stdlib/kotlin/-boolean/index.html">Boolean</a><span class="token punctuation">)</span><span class="token operator">: </span><a href="../index.html#-1680022905%2FClasslikes%2F-1345790395">Tensor</a><span class="token operator">&lt;</span><span class="token keyword"></span><a href="index.html">T</a><span class="token operator">&gt;</span><span class="top-right-position"><span class="copy-icon"></span><div class="copy-popup-wrapper popup-to-left"><span class="copy-popup-icon"></span><span>Content copied to clipboard</span></div></span></div><p class="paragraph">Returns the sum of each row of the input tensor in the given dimension <a href="sum.html">dim</a>.</p><p class="paragraph">If <a href="sum.html">keepDim</a> is true, the output tensor is of the same size as input except in the dimension <a href="sum.html">dim</a> where it is of size 1. Otherwise, <a href="sum.html">dim</a> is squeezed, resulting in the output tensor having 1 fewer dimension.</p><h4 class="">Return</h4><p class="paragraph">the sum of each row of the input tensor in the given dimension <a href="sum.html">dim</a>.</p><h2 class="">Parameters</h2><div data-togglable="Parameters"><div class="table" data-togglable="Parameters"><div class="table-row" data-filterable-current=":kmath-tensors:dokkaHtmlPartial/commonMain" data-filterable-set=":kmath-tensors:dokkaHtmlPartial/commonMain"><div class="main-subrow keyValue WithExtraAttributes"><div class=""><span class="inline-flex"><div><span><span>dim</span></span></div></span></div><div><div class="title"><div data-togglable="Parameters"><p class="paragraph">the dimension to reduce.</p></div></div></div></div></div><div class="table-row" data-filterable-current=":kmath-tensors:dokkaHtmlPartial/commonMain" data-filterable-set=":kmath-tensors:dokkaHtmlPartial/commonMain"><div class="main-subrow keyValue WithExtraAttributes"><div class=""><span class="inline-flex"><div><span>keep</span><wbr><span><span>Dim</span></span></div></span></div><div><div class="title"><div data-togglable="Parameters"><p class="paragraph">whether the output tensor has <a href="sum.html">dim</a> retained or not.</p></div></div></div></div></div></div></d
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