Online Lisp Meeting #8

[Michał "phoe" Herda]

YouTube: https://www.youtube.com/watch?v=AUEIgfj9koc

On 09.09.2020 11:38, Michał "phoe" Herda wrote:
> This is a small reminder: we are starting in 80 minutes.
>
> ~phoe
>
> On 07.09.2020 11:45, Michał "phoe" Herda wrote:
>> Hello, hey, hi, greetings!
>>
>> I am terribly sorry for posting the announcement for the next Online
>> Lisp Meeting so late, since it will be in merely two days from now. I
>> hope that most of you have already got slightly used to the
>> bi-or-tri-weekly scheme of the Meetings and I am doubly sorry since I
>> shall need to bend this one as well: I will announce two meetings, the
>> eight, and the ninth, with just a week of delay between the two. (I will
>> be unavailable during the rest of September, since life outside Lisp
>> demands my attention.)
>>
>> The 2^3th meeting will contain a re-stream of a talk by Andrew Sengul,
>> who will be presenting April, a compiler from the APL language to Common
>> Lisp. (The announcement for the 3^2th meeting will come in a separate mail.)
>>
>>> APL stands for Array Programming Language and, as the name suggests,
>>> is focused on working with arrays, making it great for for graphics,
>>> signal processing, statistical work and more.
>>>
>>> Using APL within Lisp opens vast possibilities for working with
>>> structured data. Traditionally, APL is implemented in the form of a
>>> monolithic interpreter, and feeding data from databases and other
>>> external APIs into these interpreters and getting the results back in
>>> a usable format can be daunting.
>>>
>>> April is different. Compiling APL expressions into Lisp means that any
>>> data that can be formatted as a number or character array in Lisp can
>>> be operated upon using APL. Often, dozens of lines of number-crunching
>>> code with many nested loops can be replaced by a single line of APL.
>>> If you're working on a Lisp application that involves many operations
>>> on arrays or uses complex algorithms in general, April can
>>> substantially speed up your development process.
>>>
>>> In this talk Andrew will recount the trials of developing a new APL
>>> compiler from scratch and cover some of April's unique advantages,
>>> including macros that make it easy to extend and modify the language.
>>>
>>> This presentation will also feature a sneak preview of Bloxl, a
>>> hardware startup powered by Common Lisp with April. Bloxl is producing
>>> a new luminous structural display technology; with Bloxl, you can
>>> build transparent glass walls that light up with software-controlled
>>> pixel graphics. You can see more on the Bloxl website at https://bloxl.co.
>>>
>>> The original talk that will be restreamed will happen the day before
>>> (https://www.meetup.com/LispNYC/events/vqhmbpybcmblb/). In order to
>>> make the talk more accessible to European audiences (the original will
>>> start at midnight CEST!), I have offered to re-stream the whole talk
>>> with the ability to chat with the speaker on Twitch, which Andrew has
>>> accepted.
>> A short Jitsi talk with everyone will happen just after the meeting -
>> everyone is invited! (I think it's better to organize those just after
>> the meetings, because then they actually happen.)
>>
>> Date/time/location:
>>
>>     Date: 9th September 2020
>>     Time: 13:00 CEST - https://time.is/en/CEST
>>     Talk: https://www.twitch.tv/TwitchPlaysCommonLisp
>>     Hangout: https://chat.heisig.xyz/TwitchPlaysCommonLisp @ 14:30
>>
>> Massive thanks to Marco Heisig for providing the Jitsi instance where we
>> can hang out after the talk.
>>
>> A mailing list has been created for the purpose of organizing and
>> promoting the online talks. Further announcements will be posted there.
>> See https://mailman.common-lisp.net/listinfo/online-lisp-meets
>>
>> More videos welcome - please record and send me anything that you find
>> interesting and is in any way related to Lisp.
>>
>> BR and see you!
>> Michał "phoe" Herda
>>