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| author | Marshall Lochbaum <mwlochbaum@gmail.com> | 2021-08-03 17:08:58 -0400 |
|---|---|---|
| committer | Marshall Lochbaum <mwlochbaum@gmail.com> | 2021-08-03 17:08:58 -0400 |
| commit | 8659fe5eb829b912b21c5ef604d8a7f36a74ee28 (patch) | |
| tree | a7cb4d99fd02c767feda92a9aa397c4e7bf4cec3 /docs/doc/reverse.html | |
| parent | 12b2f076d8c3f6acb11a82d555360dd44e3c8083 (diff) | |
Some links to undo.md
Diffstat (limited to 'docs/doc/reverse.html')
| -rw-r--r-- | docs/doc/reverse.html | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/docs/doc/reverse.html b/docs/doc/reverse.html index 62eae902..4fc5165a 100644 --- a/docs/doc/reverse.html +++ b/docs/doc/reverse.html @@ -38,7 +38,7 @@ <span class='Function'>≍</span><span class='Modifier2'>○</span><span class='Function'><</span><span class='Modifier'>˜´</span> <span class='Function'>⌽</span> <span class='String'>"abcd"</span> <span class='Comment'># Left to right </span>⟨ ⟨ "ab" 'c' ⟩ 'd' ⟩ </pre> -<p>Reverse is its own inverse <code><span class='Function'>⌽</span><span class='Modifier'>⁼</span></code>. As a result, <code><span class='Function'>𝔽</span><span class='Modifier2'>⌾</span><span class='Function'>⌽</span></code> reverses the argument, applies <code><span class='Function'>𝔽</span></code>, and reverses again. It's a particularly useful pattern with <a href="scan.html">Scan</a>, as it allows scanning from the end rather than the beginning of the array. For example, <code><span class='Function'>∨</span><span class='Modifier'>`</span></code> on a list of booleans changes all bits after the first <code><span class='Number'>1</span></code> to <code><span class='Number'>1</span></code>, but <code><span class='Function'>∨</span><span class='Modifier'>`</span><span class='Modifier2'>⌾</span><span class='Function'>⌽</span></code> does this to all bits before the last <code><span class='Number'>1</span></code>.</p> +<p>Reverse is its own <a href="undo.html">inverse</a> <code><span class='Function'>⌽</span><span class='Modifier'>⁼</span></code>. As a result, <code><span class='Function'>𝔽</span><span class='Modifier2'>⌾</span><span class='Function'>⌽</span></code> reverses the argument, applies <code><span class='Function'>𝔽</span></code>, and reverses again. It's a particularly useful pattern with <a href="scan.html">Scan</a>, as it allows scanning from the end rather than the beginning of the array. For example, <code><span class='Function'>∨</span><span class='Modifier'>`</span></code> on a list of booleans changes all bits after the first <code><span class='Number'>1</span></code> to <code><span class='Number'>1</span></code>, but <code><span class='Function'>∨</span><span class='Modifier'>`</span><span class='Modifier2'>⌾</span><span class='Function'>⌽</span></code> does this to all bits before the last <code><span class='Number'>1</span></code>.</p> <a class="replLink" title="Open in the REPL" target="_blank" href="https://mlochbaum.github.io/BQN/try.html#code=4oioYCAgIDDigL8w4oC/MeKAvzDigL8w4oC/MeKAvzAKCuKIqGDijL7ijL0gMOKAvzDigL8x4oC/MOKAvzDigL8x4oC/MA==">↗️</a><pre> <span class='Function'>∨</span><span class='Modifier'>`</span> <span class='Number'>0</span><span class='Ligature'>‿</span><span class='Number'>0</span><span class='Ligature'>‿</span><span class='Number'>1</span><span class='Ligature'>‿</span><span class='Number'>0</span><span class='Ligature'>‿</span><span class='Number'>0</span><span class='Ligature'>‿</span><span class='Number'>1</span><span class='Ligature'>‿</span><span class='Number'>0</span> ⟨ 0 0 1 1 1 1 1 ⟩ |