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+<head>
+  <link href="../favicon.ico" rel="shortcut icon" type="image/x-icon"/>
+  <link href="../style.css" rel="stylesheet"/>
+  <title>BQN: Lazy S (`∾`)</title>
+</head>
+<div class="nav">(<a href="https://github.com/mlochbaum/BQN">github</a>) / <a href="../index.html">BQN</a> / <a href="index.html">help</a></div>
+<h1 id="lazy-s-"><a class="header" href="#lazy-s-">Lazy S (<code><span class='Function'>∾</span></code>)</a></h1>
+<h2 id="--join--"><a class="header" href="#--join--"><code><span class='Function'>∾</span> <span class='Value'>𝕩</span></code>: Join</a></h2>
+<p>Join all elements of <code><span class='Value'>𝕩</span></code> together.</p>
+<p>Element ranks must be compatible.</p>
+<a class="replLink" title="Open in the REPL" target="_blank" href="https://mlochbaum.github.io/BQN/try.html#code=ICAg4oi+IOKfqDHigL8yLCAzLCA04oC/NeKfqQoKICAgbSDihpAgKDPigL8x4omN4oycNOKAvzLigL81KSDipYrCqCAy4oC/M+KliuKGlTYKCiAgIOKIviBt">↗️</a><pre>       <span class='Function'>∾</span> <span class='Bracket'>⟨</span><span class='Number'>1</span><span class='Ligature'>‿</span><span class='Number'>2</span><span class='Separator'>,</span> <span class='Number'>3</span><span class='Separator'>,</span> <span class='Number'>4</span><span class='Ligature'>‿</span><span class='Number'>5</span><span class='Bracket'>⟩</span>
+⟨ 1 2 3 4 5 ⟩
+
+       <span class='Value'>m</span> <span class='Gets'>←</span> <span class='Paren'>(</span><span class='Number'>3</span><span class='Ligature'>‿</span><span class='Number'>1</span><span class='Function'>≍</span><span class='Modifier'>⌜</span><span class='Number'>4</span><span class='Ligature'>‿</span><span class='Number'>2</span><span class='Ligature'>‿</span><span class='Number'>5</span><span class='Paren'>)</span> <span class='Function'>⥊</span><span class='Modifier'>¨</span> <span class='Number'>2</span><span class='Ligature'>‿</span><span class='Number'>3</span><span class='Function'>⥊↕</span><span class='Number'>6</span>
+
+       <span class='Function'>∾</span> <span class='Value'>m</span>
+┌─                       
+╵ 0 0 0 0 1 1 2 2 2 2 2  
+  0 0 0 0 1 1 2 2 2 2 2  
+  0 0 0 0 1 1 2 2 2 2 2  
+  3 3 3 3 4 4 5 5 5 5 5  
+                        ┘
+</pre>
+<h2 id="---join"><a class="header" href="#---join"><code><span class='Value'>𝕨</span> <span class='Function'>∾</span> <span class='Value'>𝕩</span></code>: Join</a></h2>
+<p>Join <code><span class='Value'>𝕨</span></code> to <code><span class='Value'>𝕩</span></code> along the first axis.</p>
+<a class="replLink" title="Open in the REPL" target="_blank" href="https://mlochbaum.github.io/BQN/try.html#code=ICAgImFiY2QiIOKIviAiRUZHIgoKICAgYSDihpAgM+KAvzMg4qWKIOKGlTkKCiAgIGMg4oaQIDTigL8zIOKliiDihpUxMiAKCiAgIGHiiL5j">↗️</a><pre>       <span class='String'>&quot;abcd&quot;</span> <span class='Function'>∾</span> <span class='String'>&quot;EFG&quot;</span>
+"abcdEFG"
+
+       <span class='Value'>a</span> <span class='Gets'>←</span> <span class='Number'>3</span><span class='Ligature'>‿</span><span class='Number'>3</span> <span class='Function'>⥊</span> <span class='Function'>↕</span><span class='Number'>9</span>
+
+       <span class='Value'>c</span> <span class='Gets'>←</span> <span class='Number'>4</span><span class='Ligature'>‿</span><span class='Number'>3</span> <span class='Function'>⥊</span> <span class='Function'>↕</span><span class='Number'>12</span> 
+
+       <span class='Value'>a</span><span class='Function'>∾</span><span class='Value'>c</span>
+┌─         
+╵ 0  1  2  
+  3  4  5  
+  6  7  8  
+  0  1  2  
+  3  4  5  
+  6  7  8  
+  9 10 11  
+          ┘
+</pre>