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[DL]IndexError: invalid index of a 0-dim tensor. Use <span class="MathJax_Preview" style="color: inherit;"><span class="MJXp-math" id="MJXp-Span-1"><span class="MJXp-mstyle" id="MJXp-Span-2"><span class="MJXp-mi MJXp-italic" id="MJXp-Span-3">t</span><span class="MJXp-mi MJXp-italic" id="MJXp-Span-4">e</span><span class="MJXp-mi MJXp-italic" id="MJXp-Span-5">n</span><span class="MJXp-mi MJXp-italic" id="MJXp-Span-6">s</span><span class="MJXp-mrow" id="MJXp-Span-7"><span class="MJXp-mspace" id="MJXp-Span-8" style="width: 0.431em; height: 0em;"></span><span class="MJXp-mtext" id="MJXp-Span-9">or</span><span class="MJXp-mspace" id="MJXp-Span-10" style="width: 0.431em; height: 0em;"></span></span><span class="MJXp-mo" id="MJXp-Span-11" style="margin-left: 0em; margin-right: 0.222em;">.</span><span class="MJXp-mi MJXp-italic" id="MJXp-Span-12">i</span><span class="MJXp-mi MJXp-italic" id="MJXp-Span-13">t</span><span class="MJXp-mi MJXp-italic" id="MJXp-Span-14">e</span><span class="MJXp-mi MJXp-italic" id="MJXp-Span-15">m</span><span class="MJXp-mrow" id="MJXp-Span-16"><span class="MJXp-mo" id="MJXp-Span-17" style="margin-left: 0em; margin-right: 0em;">(</span><span class="MJXp-mo" id="MJXp-Span-18" style="margin-left: 0em; margin-right: 0em;">)</span></span></span></span></span><script type="math/asciimath" id="MathJax-Element-1">tensor.item()</script> in Python or <span class="MathJax_Preview" style="color: inherit;"><span class="MJXp-math" id="MJXp-Span-19"><span class="MJXp-mstyle" id="MJXp-Span-20"><span class="MJXp-mi MJXp-italic" id="MJXp-Span-21">t</span><span class="MJXp-mi MJXp-italic" id="MJXp-Span-22">e</span><span class="MJXp-mi MJXp-italic" id="MJXp-Span-23">n</span><span class="MJXp-mi MJXp-italic" id="MJXp-Span-24">s</span><span class="MJXp-mrow" id="MJXp-Span-25"><span class="MJXp-mspace" id="MJXp-Span-26" style="width: 0.431em; height: 0em;"></span><span class="MJXp-mtext" id="MJXp-Span-27">or</span><span class="MJXp-mspace" id="MJXp-Span-28" style="width: 0.431em; height: 0em;"></span></span><span class="MJXp-mo" id="MJXp-Span-29" style="margin-left: 0em; margin-right: 0.222em;">.</span><span class="MJXp-mi MJXp-italic" id="MJXp-Span-30">i</span><span class="MJXp-mi MJXp-italic" id="MJXp-Span-31">t</span><span class="MJXp-mi MJXp-italic" id="MJXp-Span-32">e</span><span class="MJXp-mi MJXp-italic" id="MJXp-Span-33">m</span><span class="MJXp-mo" id="MJXp-Span-34" style="margin-left: 0.333em; margin-right: 0.333em;"><</span><span class="MJXp-mi MJXp-italic" id="MJXp-Span-35">T</span><span class="MJXp-mo" id="MJXp-Span-36" style="margin-left: 0.333em; margin-right: 0.333em;">></span><span class="MJXp-mrow" id="MJXp-Span-37"><span class="MJXp-mo" id="MJXp-Span-38" style="margin-left: 0em; margin-right: 0em;">(</span><span class="MJXp-mo" id="MJXp-Span-39" style="margin-left: 0em; margin-right: 0em;">)</span></span></span></span></span><script type="math/asciimath" id="MathJax-Element-2">tensor.item<T>()</script> in C++ to convert a 0-dim tensor to a number — 뚝딱이