update automatically

Author: cpprefjp-autoupdate

reference/linalg.html

@@ -176,8 +176,8 @@
 
     <p class="text-right"><small>
       最終更新日時(UTC):
-      <span itemprop="datePublished" content="2024-06-22T03:07:01">
-        2024年06月22日 03時07分01秒
+      <span itemprop="datePublished" content="2024-06-23T04:36:57">
+        2024年06月23日 04時36分57秒
       </span>
       <br/>
       <span itemprop="author" itemscope itemtype="http://schema.org/Person">
@@ -391,7 +391,7 @@ <h2>BLAS 1アルゴリズム</h2>
 <td>C++26</td>
 </tr>
 <tr>
-<td><code>matrix_inf_norm</code></td>
+<td><code><a href="linalg/matrix_inf_norm.html">matrix_inf_norm</a></code></td>
 <td>行列の無限大ノルム(Infinity norm)を求める (function template)</td>
 <td>C++26</td>
 </tr>

reference/linalg/dotc.html

@@ -204,8 +204,8 @@
 
     <p class="text-right"><small>
       最終更新日時(UTC):
-      <span itemprop="datePublished" content="2024-06-16T09:11:26">
-        2024年06月16日 09時11分26秒
+      <span itemprop="datePublished" content="2024-06-23T05:30:38">
+        2024年06月23日 05時30分38秒
       </span>
       <br/>
       <span itemprop="author" itemscope itemtype="http://schema.org/Person">
@@ -294,7 +294,47 @@ <h2>戻り値</h2>
 <li>(4): (3)の並列アルゴリズム版。</li>
 </ul>
 <h2>例</h2>
+<p><strong>[注意] 処理系にあるコンパイラで確認していないため、間違っているかもしれません。</strong></p>
+<p><div class="codehilite"><pre><span></span><code><span class="cp">#include</span> <span class="cpf"><a href="../cmath.html">&lt;cmath&gt;</a></span><span class="cp"></span>
+<span class="cp">#include</span> <span class="cpf"><a href="../complex.html">&lt;complex&gt;</a></span><span class="cp"></span>
+<span class="cp">#include</span> <span class="cpf"><a href="../execution.html">&lt;execution&gt;</a></span><span class="cp"></span>
+<span class="cp">#include</span> <span class="cpf"><a href="../iostream.html">&lt;iostream&gt;</a></span><span class="cp"></span>
+<span class="cp">#include</span> <span class="cpf"><a href="../linalg.html">&lt;linalg&gt;</a></span><span class="cp"></span>
+<span class="cp">#include</span> <span class="cpf"><a href="../mdspan.html">&lt;mdspan&gt;</a></span><span class="cp"></span>
+<span class="cp">#include</span> <span class="cpf"><a href="../numbers.html">&lt;numbers&gt;</a></span><span class="cp"></span>
+<span class="cp">#include</span> <span class="cpf"><a href="../vector.html">&lt;vector&gt;</a></span><span class="cp"></span>
+
+<span class="kt">int</span> <span class="nf">main</span><span class="p">()</span>
+<span class="p">{</span>
+  <span class="k">constexpr</span> <span class="kt">size_t</span> <span class="n">N</span> <span class="o">=</span> <span class="mi">4</span><span class="p">;</span>
+
+  <span class="n"><a href="../vector/vector.html">std::vector</a></span><span class="o">&lt;</span><span class="n">std</span><span class="o">::</span><span class="n">complex</span><span class="o">&lt;</span><span class="kt">double</span><span class="o">&gt;&gt;</span> <span class="n">a_vec</span><span class="p">(</span><span class="n">N</span><span class="p">);</span>
+  <span class="n"><a href="../mdspan/mdspan.html">std::mdspan</a></span> <span class="n">a</span><span class="p">(</span><span class="n">a_vec</span><span class="p">.</span><span class="n">data</span><span class="p">(),</span> <span class="n">N</span><span class="p">);</span>
+
+  <span class="k">for</span><span class="p">(</span><span class="kt">int</span> <span class="n">i</span> <span class="o">=</span> <span class="mi">0</span><span class="p">;</span> <span class="n">i</span> <span class="o">&lt;</span> <span class="n">a</span><span class="p">.</span><span class="n">extent</span><span class="p">(</span><span class="mi">0</span><span class="p">);</span> <span class="o">++</span><span class="n">i</span><span class="p">)</span> <span class="p">{</span>
+    <span class="k">auto</span> <span class="n">sign</span> <span class="o">=</span> <span class="n">i</span> <span class="o">%</span> <span class="mi">2</span> <span class="o">==</span> <span class="mi">0</span> <span class="o">?</span> <span class="mf">1.0</span> <span class="o">:</span> <span class="o">-</span><span class="mf">1.0</span><span class="p">;</span>
+    <span class="n">a</span><span class="p">[</span><span class="n">i</span><span class="p">].</span><span class="n">real</span><span class="p">(</span><span class="n">sign</span> <span class="o">/</span> <span class="p">(</span><span class="mi">2</span> <span class="o">*</span> <span class="n">i</span> <span class="o">+</span> <span class="mi">1</span><span class="p">));</span>
+    <span class="n">a</span><span class="p">[</span><span class="n">i</span><span class="p">].</span><span class="n">imag</span><span class="p">(</span><span class="o">-</span><span class="n">sign</span> <span class="o">/</span> <span class="p">(</span><span class="mi">2</span> <span class="o">*</span> <span class="p">(</span><span class="n">i</span> <span class="o">+</span> <span class="mi">1</span><span class="p">)));</span>
+  <span class="p">}</span>
+
+  <span class="n"><a href="../vector/vector.html">std::vector</a></span><span class="o">&lt;</span><span class="n">std</span><span class="o">::</span><span class="n">complex</span><span class="o">&lt;</span><span class="kt">double</span><span class="o">&gt;&gt;</span> <span class="n">b_vec</span><span class="p">(</span><span class="n">a_vec</span><span class="p">);</span>
+  <span class="n"><a href="../mdspan/mdspan.html">std::mdspan</a></span> <span class="n">b</span><span class="p">(</span><span class="n">b_vec</span><span class="p">.</span><span class="n">data</span><span class="p">(),</span> <span class="n">N</span><span class="p">);</span>
+
+  <span class="n"><a href="../iostream/cout.html">std::cout</a></span> <span class="o">&lt;&lt;</span> <span class="n">std</span><span class="o">::</span><span class="n">linalg</span><span class="o">::</span><span class="n">dotc</span><span class="p">(</span><span class="n">a</span><span class="p">,</span> <span class="n">b</span><span class="p">,</span> <span class="n">std</span><span class="o">::</span><span class="n">complex</span><span class="o">&lt;</span><span class="kt">double</span><span class="o">&gt;</span><span class="p">(</span><span class="o">-</span><span class="n">std</span><span class="o">::</span><span class="n">numbers</span><span class="o">::</span><span class="n">pi</span> <span class="o">*</span> <span class="n">std</span><span class="o">::</span><span class="n">numbers</span><span class="o">::</span><span class="n">pi</span> <span class="o">/</span> <span class="mi">6</span><span class="p">,</span> <span class="mi">0</span><span class="p">))</span> <span class="o">&lt;&lt;</span> <span class="sc">'\n'</span>                      <span class="c1">// (1)</span>
+            <span class="o">&lt;&lt;</span> <span class="n">std</span><span class="o">::</span><span class="n">linalg</span><span class="o">::</span><span class="n">dotc</span><span class="p">(</span><span class="n"><a href="../execution/execution/execution_policy.html">std::execution::par</a></span><span class="p">,</span> <span class="n">a</span><span class="p">,</span> <span class="n">b</span><span class="p">,</span> <span class="n">std</span><span class="o">::</span><span class="n">complex</span><span class="o">&lt;</span><span class="kt">double</span><span class="o">&gt;</span><span class="p">(</span><span class="o">-</span><span class="n">std</span><span class="o">::</span><span class="n">numbers</span><span class="o">::</span><span class="n">pi</span> <span class="o">*</span> <span class="n">std</span><span class="o">::</span><span class="n">numbers</span><span class="o">::</span><span class="n">pi</span> <span class="o">/</span> <span class="mi">6</span><span class="p">,</span> <span class="mi">0</span><span class="p">))</span> <span class="o">&lt;&lt;</span> <span class="sc">'\n'</span> <span class="c1">// (2)</span>
+            <span class="o">&lt;&lt;</span> <span class="n">std</span><span class="o">::</span><span class="n">linalg</span><span class="o">::</span><span class="n">dotc</span><span class="p">(</span><span class="n">a</span><span class="p">,</span> <span class="n">b</span><span class="p">)</span> <span class="o">&lt;&lt;</span> <span class="sc">'\n'</span>                                <span class="c1">// (3)</span>
+            <span class="o">&lt;&lt;</span> <span class="n">std</span><span class="o">::</span><span class="n">linalg</span><span class="o">::</span><span class="n">dotc</span><span class="p">(</span><span class="n"><a href="../execution/execution/execution_policy.html">std::execution::par</a></span><span class="p">,</span> <span class="n">a</span><span class="p">,</span> <span class="n">b</span><span class="p">)</span> <span class="o">&lt;&lt;</span> <span class="sc">'\n'</span><span class="p">;</span>          <span class="c1">// (4)</span>
+
+  <span class="k">return</span> <span class="mi">0</span><span class="p">;</span>
+<span class="p">}</span>
+</code></pre></div>
+</p>
 <h3>出力</h3>
+<p><pre><code>(-0.117512,-4.62593e-19)
+(-0.117512,0)
+(1.52742,-4.62593e-19)
+(1.52742,0)
+</code></pre></p>
 <h2>バージョン</h2>
 <h3>言語</h3>
 <ul>

reference/linalg/matrix_frob_norm.html

@@ -204,8 +204,8 @@
 
     <p class="text-right"><small>
       最終更新日時(UTC):
-      <span itemprop="datePublished" content="2024-06-22T03:06:03">
-        2024年06月22日 03時06分03秒
+      <span itemprop="datePublished" content="2024-06-23T05:33:24">
+        2024年06月23日 05時33分24秒
       </span>
       <br/>
       <span itemprop="author" itemscope itemtype="http://schema.org/Person">
@@ -297,13 +297,13 @@ <h2>例</h2>
   <span class="k">constexpr</span> <span class="kt">size_t</span> <span class="n">M</span> <span class="o">=</span> <span class="mi">4</span><span class="p">;</span>
   <span class="k">constexpr</span> <span class="kt">size_t</span> <span class="n">N</span> <span class="o">=</span> <span class="mi">4</span><span class="p">;</span>
 
-  <span class="n"><a href="../array/array.html">std::array</a></span><span class="o">&lt;</span><span class="kt">double</span><span class="p">,</span> <span class="n">M</span> <span class="o">*</span> <span class="n">N</span><span class="o">&gt;</span> <span class="n">vec</span><span class="p">;</span>
+  <span class="n"><a href="../array/array.html">std::array</a></span><span class="o">&lt;</span><span class="kt">double</span><span class="p">,</span> <span class="n">M</span> <span class="o">*</span> <span class="n">N</span><span class="o">&gt;</span> <span class="n">mat</span><span class="p">;</span>
 
-  <span class="n"><a href="../mdspan/mdspan.html">std::mdspan</a></span> <span class="n">v</span><span class="p">(</span><span class="n">vec</span><span class="p">.</span><span class="n">data</span><span class="p">(),</span> <span class="n">M</span><span class="p">,</span> <span class="n">N</span><span class="p">);</span>
+  <span class="n"><a href="../mdspan/mdspan.html">std::mdspan</a></span> <span class="n">A</span><span class="p">(</span><span class="n">mat</span><span class="p">.</span><span class="n">data</span><span class="p">(),</span> <span class="n">M</span><span class="p">,</span> <span class="n">N</span><span class="p">);</span>
 
   <span class="k">for</span><span class="p">(</span><span class="kt">int</span> <span class="n">i</span> <span class="o">=</span> <span class="mi">0</span><span class="p">;</span> <span class="n">i</span> <span class="o">&lt;</span> <span class="n">A</span><span class="p">.</span><span class="n">extent</span><span class="p">(</span><span class="mi">0</span><span class="p">);</span> <span class="o">++</span><span class="n">i</span><span class="p">)</span> <span class="p">{</span>
     <span class="k">for</span><span class="p">(</span><span class="kt">int</span> <span class="n">j</span> <span class="o">=</span> <span class="mi">0</span><span class="p">;</span> <span class="n">j</span> <span class="o">&lt;</span> <span class="n">A</span><span class="p">.</span><span class="n">extent</span><span class="p">(</span><span class="mi">1</span><span class="p">);</span> <span class="o">++</span><span class="n">j</span><span class="p">)</span> <span class="p">{</span>
-      <span class="n">A</span><span class="p">(</span><span class="n">i</span><span class="p">,</span><span class="n">j</span><span class="p">)</span> <span class="o">=</span> <span class="p">((</span><span class="n">i</span> <span class="o">+</span> <span class="n">j</span><span class="p">)</span> <span class="o">%</span> <span class="mi">2</span> <span class="o">==</span> <span class="mi">0</span> <span class="o">?</span> <span class="mf">1.0</span> <span class="o">:</span> <span class="o">-</span><span class="mf">1.0</span><span class="p">)</span> <span class="o">/</span> <span class="p">(</span><span class="n">i</span> <span class="o">*</span> <span class="n">A</span><span class="p">.</span><span class="n">extent</span><span class="p">(</span><span class="mi">1</span><span class="p">)</span> <span class="o">+</span> <span class="n">j</span> <span class="o">+</span> <span class="mi">1</span><span class="p">);</span>
+      <span class="n">A</span><span class="p">[</span><span class="n">i</span><span class="p">,</span><span class="n">j</span><span class="p">]</span> <span class="o">=</span> <span class="p">((</span><span class="n">i</span> <span class="o">+</span> <span class="n">j</span><span class="p">)</span> <span class="o">%</span> <span class="mi">2</span> <span class="o">==</span> <span class="mi">0</span> <span class="o">?</span> <span class="mf">1.0</span> <span class="o">:</span> <span class="o">-</span><span class="mf">1.0</span><span class="p">)</span> <span class="o">/</span> <span class="p">(</span><span class="n">i</span> <span class="o">*</span> <span class="n">A</span><span class="p">.</span><span class="n">extent</span><span class="p">(</span><span class="mi">1</span><span class="p">)</span> <span class="o">+</span> <span class="n">j</span> <span class="o">+</span> <span class="mi">1</span><span class="p">);</span>
     <span class="p">}</span>
   <span class="p">}</span>
 
@@ -317,10 +317,10 @@ <h2>例</h2>
 </code></pre></div>
 </p>
 <h3>出力</h3>
-<p><pre><code>1.2636
-1.2636
-1.25871
-1.25871
+<p><pre><code>1.58781
+1.58781
+1.58435
+1.58435
 </code></pre></p>
 <h2>バージョン</h2>
 <h3>言語</h3>