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<head>
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<title>BQN: Down Arrow (`↓`)</title>
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<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="down-arrow-"><a class="header" href="#down-arrow-">Down Arrow (<code><span class='Function'>↓</span></code>)</a></h1>
<h2 id="--suffixes"><a class="header" href="#--suffixes"><code><span class='Function'>↓</span> <span class='Value'>𝕩</span></code>: Suffixes</a></h2>
<p>Suffixes of array <code><span class='Value'>𝕩</span></code> along its first axis.</p>
<a class="replLink" title="Open in the REPL" target="_blank" href="https://mlochbaum.github.io/BQN/try.html#code=ICAg4oaTIDHigL8y4oC/M+KAvzQKCiAgIGEg4oaQIDPigL8zIOKliiDihpU5CgogICDihpMgYQ==">↗️</a><pre> <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 ⟩ ⟨ 2 3 4 ⟩ ⟨ 3 4 ⟩ ⟨ 4 ⟩ ⟨⟩ ⟩
<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='Function'>↓</span> <span class='Value'>a</span>
┌─
· ┌─ ┌─ ┌─ ↕0‿3
╵ 0 1 2 ╵ 3 4 5 ╵ 6 7 8
3 4 5 6 7 8 ┘
6 7 8 ┘
┘
┘
</pre>
<h2 id="---drop"><a class="header" href="#---drop"><code><span class='Value'>𝕨</span> <span class='Function'>↓</span> <span class='Value'>𝕩</span></code>: Drop</a></h2>
<p>For each integer in <code><span class='Value'>𝕨</span></code>, drop that many elements from the beginning of each dimension of <code><span class='Value'>𝕩</span></code>.</p>
<p>Negative numbers drop from the end.</p>
<a class="replLink" title="Open in the REPL" target="_blank" href="https://mlochbaum.github.io/BQN/try.html#code=ICAgMyDihpMgMeKAvzPigL814oC/NjcKCiAgIGEg4oaQIDTigL80IOKliiDihpUxNgoKICAgM+KAvzMg4oaTIGEKCiAgIDXigL81IOKGkyBhCgoKICAgM+KAv8KvMyDihpMgYQ==">↗️</a><pre> <span class='Number'>3</span> <span class='Function'>↓</span> <span class='Number'>1</span><span class='Ligature'>‿</span><span class='Number'>3</span><span class='Ligature'>‿</span><span class='Number'>5</span><span class='Ligature'>‿</span><span class='Number'>67</span>
⟨ 67 ⟩
<span class='Value'>a</span> <span class='Gets'>←</span> <span class='Number'>4</span><span class='Ligature'>‿</span><span class='Number'>4</span> <span class='Function'>⥊</span> <span class='Function'>↕</span><span class='Number'>16</span>
<span class='Error'>Error: Redefinition</span>
<span class='Number'>3</span><span class='Ligature'>‿</span><span class='Number'>3</span> <span class='Function'>↓</span> <span class='Value'>a</span>
┌┐
└┘
<span class='Number'>5</span><span class='Ligature'>‿</span><span class='Number'>5</span> <span class='Function'>↓</span> <span class='Value'>a</span>
┌┐
└┘
<span class='Number'>3</span><span class='Ligature'>‿</span><span class='Number'>¯3</span> <span class='Function'>↓</span> <span class='Value'>a</span>
┌┐
└┘
</pre>
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