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| author | Marshall Lochbaum <mwlochbaum@gmail.com> | 2020-09-20 15:16:59 -0400 |
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| committer | Marshall Lochbaum <mwlochbaum@gmail.com> | 2020-09-20 15:16:59 -0400 |
| commit | 1ed779f6b9c3c19d2188e818fe6785a71c6537ba (patch) | |
| tree | 91ce5db41aa178781f0fbd792e9427329cbefb06 /docs/doc/fromDyalog.html | |
| parent | f910f64594053011efd57a97100ad19ee1e39fb4 (diff) | |
Add major terminology changes to fromDyalog.md
Diffstat (limited to 'docs/doc/fromDyalog.html')
| -rw-r--r-- | docs/doc/fromDyalog.html | 63 |
1 files changed, 63 insertions, 0 deletions
diff --git a/docs/doc/fromDyalog.html b/docs/doc/fromDyalog.html index 809575cb..be98d6ce 100644 --- a/docs/doc/fromDyalog.html +++ b/docs/doc/fromDyalog.html @@ -6,6 +6,69 @@ <div class="nav"><a href="https://github.com/mlochbaum/BQN">BQN</a></div> <h1 id="bqndyalog-apl-dictionary">BQN–Dyalog APL dictionary</h1> <p>A few tables to help users of Dyalog APL (or similar) get started quickly on BQN. Here we assume <code><span class='Value'>⎕</span><span class='Function'>ML</span></code> is 1 for Dyalog.</p> +<h2 id="terminology">Terminology</h2> +<h3 id="array-model">Array model</h3> +<p>BQN uses the <a href="based.html">based array model</a>, so that a Dyalog's simple scalar corresponds to many BQN values: an atom, its enclose, and so on.</p> +<table> +<thead> +<tr> +<th>Dyalog</th> +<th>BQN</th> +</tr> +</thead> +<tbody> +<tr> +<td>Simple scalar</td> +<td>Atom</td> +</tr> +<tr> +<td>Scalar</td> +<td>Unit</td> +</tr> +<tr> +<td>Vector</td> +<td>List</td> +</tr> +<tr> +<td>Matrix</td> +<td>Table</td> +</tr> +</tbody> +</table> +<p>BQN shares the terms "cell" and "major cell" with Dyalog, and uses +"element" (which may mean different things to different Dyalog users) <em>not</em> for a 0-cell but for the value it contains.</p> +<h3 id="roles">Roles</h3> +<p>Dyalog uses value types (array, function, and so on) to determine syntax while BQN uses a separate concept called syntactic roles. See <a href="context.html">context-free grammer</a>.</p> +<table> +<thead> +<tr> +<th>Dyalog type</th> +<th>BQN role</th> +</tr> +</thead> +<tbody> +<tr> +<td>Array</td> +<td>Subject</td> +</tr> +<tr> +<td>Function</td> +<td>Function</td> +</tr> +<tr> +<td>Monadic operator</td> +<td>1-modifier</td> +</tr> +<tr> +<td>Dyadic operator</td> +<td>2-modifier</td> +</tr> +<tr> +<td>Niladic function</td> +<td><em>go away</em></td> +</tr> +</tbody> +</table> <h2 id="for-reading">For reading</h2> <p>Here are some closest equivalents in Dyalog APL for the BQN functions that don't use the same glyphs as APL. Correspondence can be approximate, and <code><span class='Function'>⌽</span></code> is just used as a decorator to mean "reverse some things".</p> <table> |