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   screwlisp (screwtape@mastodon.sdf.org)'s status on Tuesday, 07-Jan-2025 11:15:56 JST screwlisp

   • Paul SomeoneElse

   @pkw why are people talking about this right now? And how are things, by the way?

   • Embed this notice
     pizzapal (pizzapal@mastodon.sdf.org)'s status on Tuesday, 07-Jan-2025 12:59:05 JST pizzapal

     in reply to

     • Paul SomeoneElse

     @pkw @screwtape i know what a fourrier transform is but not what makes it fast.

     "give me something fast" -- andrew eldritch

   • Embed this notice
     screwlisp (screwtape@mastodon.sdf.org)'s status on Tuesday, 07-Jan-2025 12:59:05 JST screwlisp

     in reply to

     • pizzapal
     • Paul SomeoneElse

     @pizzapal @pkw
     I guess you're doomed to be a polylang. Sorry to hear about the virus!
     Discrete fourier transforms are defined by
     (defun naieve-dft (l &key (sgn -1) &aux (len (length l)))
     "consing naieve dft of list. Computes all twiddle factors. :sgn +1 for inverse."
     (loop
     :for k :below len
     :collecting
     (loop :for n :below len
     :for w := (twiddle k n len :sgn sgn)
     :sum
     (* (nth n l) w))))
     twiddles=(exp (* #C(0 1) sgn pi 2 k n (/ len)))
     But this turns out to be overdefined

   • Embed this notice
     Paul SomeoneElse (pkw@snac.d34d.net)'s status on Tuesday, 07-Jan-2025 12:59:07 JST Paul SomeoneElse

     in reply to
     Good thanks! I had covid, booo hiss! but i am better now yay!
     I've been going down C and scheme and janet language rabbit holes.
     I have a "language learning and then discarding" problem! :P
     
     The cool thing is each iteration of this leaves a few langs at the top.
     
     ;; no order implied
     
     - commonlisp
     - scheme
     - C
     - BOURNE shell script (not bash)
     - TCL / Expect
     - Janet
     
     I think golang fell off that list and C has kind of taken it's place.
     I am surprised Python isn't on there, oh well (I still use it in maintenance mode).
     
     I have been reading your fft posts (and not understanding them beyond knowing what a fft is :P)
     
     
     
   • Embed this notice
     screwlisp (screwtape@mastodon.sdf.org)'s status on Tuesday, 07-Jan-2025 12:59:59 JST screwlisp

     in reply to

     • pizzapal
     • Paul SomeoneElse

     @pizzapal @pkw
     Oh, right, you already new. Well I'm practicing saying this to myself ;p

   • Embed this notice
     screwlisp (screwtape@mastodon.sdf.org)'s status on Tuesday, 07-Jan-2025 15:15:52 JST screwlisp

     in reply to

     • Ramin Honary
     • Paul SomeoneElse

     all these unprintable objects everywhere, not easy at all

     @ramin_hal9001
     thanks
     @pkw

   • Embed this notice
     Ramin Honary (ramin_hal9001@fe.disroot.org)'s status on Tuesday, 07-Jan-2025 15:15:54 JST Ramin Honary

     in reply to

     • Paul SomeoneElse

     why are people talking about [if HTML is a language] right now?

     @screwtape @pkw I was wondering that myself. Then it turns out it was because of this wired article: https://www.wired.com/story/html-is-actually-a-programming-language-fight-me

   • Embed this notice
     screwlisp (screwtape@mastodon.sdf.org)'s status on Tuesday, 07-Jan-2025 15:21:46 JST screwlisp

     in reply to

     • Ramin Honary
     • Paul SomeoneElse

     @ramin_hal9001
     though I was surprised when I got to the writer identifying that programming languages like Python are worse than other languages that have sophisticated handle-named-condition-and-keep-going systems. Someone should introduce that writer to lisp and moo.
     @pkw