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+<head>
+  <link href="../favicon.ico" rel="shortcut icon" type="image/x-icon"/>
+  <link href="../style.css" rel="stylesheet"/>
+  <title>BQN: Tape (`≍`)</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="tape-"><a class="header" href="#tape-">Tape (<code><span class='Function'>≍</span></code>)</a></h1>
+<h2 id="--solo-"><a class="header" href="#--solo-"><code><span class='Function'>≍</span> <span class='Value'>𝕩</span></code>: Solo</a></h2>
+<p>Add a dimension to <code><span class='Value'>𝕩</span></code>.</p>
+<a class="replLink" title="Open in the REPL" target="_blank" href="https://mlochbaum.github.io/BQN/try.html#code=ICDiiY0gMQoKICAKICDiiY3iiY0gMQoKICAKIOKJjeKJjeKJjSAxCgogIAog4omN4omNIDHigL8y4oC/M+KAvzQKCiAgCiDiiY3iiY3iiY0gMeKAvzLigL8z4oC/NA==">↗️</a><pre>      <span class='Function'>≍</span> <span class='Number'>1</span>
+⟨ 1 ⟩
+
+      
+<span class='Error'>Error: Empty program</span>
+      <span class='Function'>≍≍</span> <span class='Number'>1</span>
+┌─   
+╵ 1  
+    ┘
+
+      
+<span class='Error'>Error: Empty program</span>
+     <span class='Function'>≍≍≍</span> <span class='Number'>1</span>
+┌─   
+╎ 1  
+    ┘
+
+      
+<span class='Error'>Error: Empty program</span>
+     <span class='Function'>≍≍</span> <span class='Number'>1</span><span class='Ligature'>‿</span><span class='Number'>2</span><span class='Ligature'>‿</span><span class='Number'>3</span><span class='Ligature'>‿</span><span class='Number'>4</span>
+┌─         
+╎ 1 2 3 4  
+          ┘
+
+      
+<span class='Error'>Error: Empty program</span>
+     <span class='Function'>≍≍≍</span> <span class='Number'>1</span><span class='Ligature'>‿</span><span class='Number'>2</span><span class='Ligature'>‿</span><span class='Number'>3</span><span class='Ligature'>‿</span><span class='Number'>4</span>
+┌─         
+┆ 1 2 3 4  
+          ┘
+</pre>
+<h2 id="---couple"><a class="header" href="#---couple"><code><span class='Value'>𝕨</span> <span class='Function'>≍</span> <span class='Value'>𝕩</span></code>: Couple</a></h2>
+<p>Join <code><span class='Value'>𝕨</span></code> and <code><span class='Value'>𝕩</span></code> along a newly created axis.</p>
+<a class="replLink" title="Open in the REPL" target="_blank" href="https://mlochbaum.github.io/BQN/try.html#code=ICAgMSDiiY0gMwoKICAgMeKAvzIg4omNIDLigL8z">↗️</a><pre>       <span class='Number'>1</span> <span class='Function'>≍</span> <span class='Number'>3</span>
+⟨ 1 3 ⟩
+
+       <span class='Number'>1</span><span class='Ligature'>‿</span><span class='Number'>2</span> <span class='Function'>≍</span> <span class='Number'>2</span><span class='Ligature'>‿</span><span class='Number'>3</span>
+┌─     
+╵ 1 2  
+  2 3  
+      ┘
+</pre>