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| author | Marshall Lochbaum <mwlochbaum@gmail.com> | 2020-09-24 11:00:52 -0400 |
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| committer | Marshall Lochbaum <mwlochbaum@gmail.com> | 2020-09-24 11:00:52 -0400 |
| commit | 9bccc26a0c3231d7cc9adc37c1a850ef44fd436a (patch) | |
| tree | d9ee03b98126b14423af4d07ae4fd7d84589f1aa /docs/doc/shift.html | |
| parent | 3863c3837ded859328243ae42f524c45741c872e (diff) | |
Add breadcrumbs to generated html
Diffstat (limited to 'docs/doc/shift.html')
| -rw-r--r-- | docs/doc/shift.html | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/docs/doc/shift.html b/docs/doc/shift.html index c9d84e1e..f96661d1 100644 --- a/docs/doc/shift.html +++ b/docs/doc/shift.html @@ -3,7 +3,7 @@ <link href="../style.css" rel="stylesheet"/> <title>BQN: Shift functions</title> </head> -<div class="nav"><a href="https://github.com/mlochbaum/BQN">BQN</a></div> +<div class="nav"><a href="https://github.com/mlochbaum/BQN">BQN</a> / <a href="../index.html">main</a> / <a href="index.html">doc</a></div> <h1 id="shift-functions">Shift functions</h1> <p>The shift functions <code><span class='Function'>«</span></code> and <code><span class='Function'>»</span></code> are two new primitives added to BQN based on a pattern used heavily in the compiler and a reasonable amount everywhere else. Shifts resemble but are more general than the bit-based shift operations used in low-level languages. They replace the APL pattern of a 2-wise reduction after appending or prepending an element (APL's <code><span class='Number'>2</span><span class='Function'>≠/</span><span class='Number'>0</span><span class='Separator'>,</span><span class='Value'>v</span></code> translates to <code><span class='Function'>»</span><span class='Modifier2'>⊸</span><span class='Function'>≠</span><span class='Value'>v</span></code>), one of the more common uses of 2-wise reduction.</p> <p>The result of a shift function always has the same shape as its right argument. The function adds major cells to the beginning (<code><span class='Function'>»</span></code>) or end (<code><span class='Function'>«</span></code>) of <code><span class='Value'>𝕩</span></code>, moving the cells already in <code><span class='Value'>𝕩</span></code> to accomodate them. Some cells on the opposite side from those added will "fall off" and not be included in the result.</p> |
