https://elated-raman-42e0c2.netlify.app/tags/octave/Recent content in Octave on Sawyer Zheng's BlogHugozh-cnFri, 05 Jan 2024 13:18:49 +0800https://elated-raman-42e0c2.netlify.app/post/notes/octave/Mon, 24 Apr 2023 00:00:00 +0000https://elated-raman-42e0c2.netlify.app/post/notes/octave/<div id="outline-container-headline-1" class="outline-2"> <h2 id="headline-1"> 参考 </h2> <div id="outline-text-headline-1" class="outline-text-2"> <ol> <li>octave cookbook: <a href="https://wiki.octave.org/Cookbook#Structures">Cookbook - Octave</a></li> <li>org-babel octave: <a href="https://orgmode.org/worg/org-contrib/babel/languages/ob-doc-octave.html">Octave Code Blocks in Babel</a></li> </ol> </div> </div> <div id="outline-container-headline-2" class="outline-2"> <h2 id="headline-2"> 向量 </h2> <div id="outline-text-headline-2" class="outline-text-2"> <ol> <li> <p>索引</p> <ul> <li>从 1 开始计数，注意不是 0</li> <li>使用 (), 而不是 []</li> <li> <p>eg:</p> <div class="src src-octave"> <div class="highlight"><div class="chroma"> <table class="lntable"><tr><td class="lntd"> <pre tabindex="0" class="chroma"><code><span class="lnt">1 </span><span class="lnt">2 </span><span class="lnt">3 </span><span class="lnt">4 </span></code></pre></td> <td class="lntd"> <pre tabindex="0" class="chroma"><code class="language-octave" data-lang="octave"><span class="line"><span class="cl"><span class="n">t</span> <span class="p">=</span> <span class="nb">linspace</span><span class="p">(</span><span class="mi">0</span><span class="p">,</span> <span class="mi">1</span><span class="p">,</span> <span class="mi">3</span><span class="p">);</span><span class="err"> </span></span></span><span class="line"><span class="cl"><span class="err"></span><span class="nb">disp</span><span class="p">(</span><span class="n">t</span><span class="p">);</span><span class="err"> </span></span></span><span class="line"><span class="cl"><span class="err"> </span></span></span><span class="line"><span class="cl"><span class="err"></span><span class="nb">disp</span><span class="p">(</span><span class="n">t</span><span class="p">(</span><span class="mi">1</span><span class="p">));</span> <span class="c">% 元素索引</span></span></span></code></pre></td></tr></table> </div> </div> </div> <pre class="example"> 0 0.5000 1.0000 0 </pre> </li> </ul> </li> </ol> </div> </div> <div id="outline-container-headline-3" class="outline-2"> <h2 id="headline-3"> org babel </h2> <div id="outline-text-headline-3" class="outline-text-2"> <ul> <li> <p>results – output</p> <div class="src src-octave"> <div class="highlight"><div class="chroma"> <table class="lntable"><tr><td class="lntd"> <pre tabindex="0" class="chroma"><code><span class="lnt">1 </span></code></pre></td> <td class="lntd"> <pre tabindex="0" class="chroma"><code class="language-octave" data-lang="octave"><span class="line"><span class="cl"><span class="nb">disp</span><span class="p">(</span><span class="s">&#39;yes&#39;</span><span class="p">);</span></span></span></code></pre></td></tr></table> </div> </div> </div> <pre class="example"> yes </pre> </li> <li> <p>results – value</p>