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authorMarshall Lochbaum <mwlochbaum@gmail.com>2021-01-12 15:45:33 -0500
committerMarshall Lochbaum <mwlochbaum@gmail.com>2021-01-12 15:45:33 -0500
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<p>If you're already an array programmer, then you're in better shape: the current <a href="doc/index.html"><strong>documentation</strong></a> covers nearly all differences from APL, and the BQN-Dyalog APL <a href="doc/fromDyalog.html">dictionary</a> might also be a useful resource. However, you should be aware of two key differences between BQN and existing array languages beyond just the changes of <a href="doc/primitive.html">primitives</a>—if these differences don't seem important to you then you don't understand them! BQN's <a href="doc/based.html">based array model</a> is different from both a flat array model like J and a nested one like APL2, Dyalog, or GNU APL in that it has true non-array values (plain numbers and characters) that are different from depth-0 scalars. BQN also uses <a href="doc/context.html">syntactic roles</a> rather than dynamic type to determine how values interact, that is, what's an argument or operand and so on. This system, along with lexical closures, means BQN fully supports Lisp-style <a href="doc/functional.html">functional programming</a>.</p>
<p>A useful tool for both beginners and experienced users is <a href="https://mlochbaum.github.io/bqncrate/"><strong>BQNcrate</strong></a>, a searchable collection of BQN snippets to solve particular tasks. If you have a question about how you might approach a problem, give it a try by typing in a relevant keyword or two.</p>
<h2 id="where-can-i-find-bqn-users">Where can I find BQN users?</h2>
-<p>Most BQN users are active on the <a href="https://chat.stackexchange.com/rooms/52405/the-apl-orchard">APL Orchard</a> forum. If you (like me) don't have a Stack Overflow or Stack Exchange account with a few points you'll have to send an email to get forum access; see the instructions in the room description. You can also chat there by IRC: a bot mirrors messages back and forth to the #apl freenode channel.</p>
-<p>The official place to ask BQN programming questions is <a href="https://topanswers.xyz/apl">topanswers.xyz/apl</a>. Tag your questions with &quot;bqn&quot;, of course.</p>
-<p>In addition to these forums, you can contact me personally via Github issues or with the email address in my Github profile.</p>
+<p>Most BQN users are active on the <a href="https://chat.stackexchange.com/rooms/52405/the-apl-orchard">APL Orchard</a> forum. If you (like me) don't have a Stack Overflow or Stack Exchange account with a few points you'll have to send an email to get forum access; see the instructions in the room description. You can also chat there by IRC: a bot mirrors messages back and forth to the #apl freenode channel. The <a href="https://matrix.org/">Matrix</a> channel #apl:matrix.org is similarly linked.</p>
+<p>The official place to ask BQN programming questions is <a href="https://topanswers.xyz/apl">topanswers.xyz/apl</a> (I know it's dead, but I'm still checking it). Tag your questions with &quot;bqn&quot;, of course.</p>
+<p>In addition to these forums, you can contact me personally via Github issues or with the email address shown in my Github profile.</p>