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« Integer #multiplication in time O(n log n) »

#DavidHarvey #JorisVanDerHoeven

https://hal.archives-ouvertes.fr/hal-02070778

« Deux chercheurs ont développé une nouvelle méthode pour multiplier les très grands nombres. Une avancée potentiellement historique pour l’#informatique. »

https://lejournal.cnrs.fr/articles/la-multiplication-reinventee

AMD Immune to Crippling MDS Vulnerabilities at https://www.tomshardware.com/news/amd-mds-vulnerability-immune-intel,39367.html - discuss at https://freepo.st/freepost.cgi/post/som666heql #freepost

RISC-V from scratch 2: Hardware layouts, linker scripts, and C runtimes at https://twilco.github.io/riscv-from-scratch/2019/04/27/riscv-from-scratch-2.html - discuss at https://freepo.st/freepost.cgi/post/69ytklo7um #freepost

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careers, academia Show more

hot programming take Show more

re: Coq, associativity of vectors Show more

in-joke Show more

🎉 #FirstToot 🎉

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There's a night mode to save your eyes as well as fine-grained permissions so you can decide how much access (if any) others have to your notes 😉

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Porting NetBSD to the RISC-V at https://www.bsdcan.org/2019/schedule/events/1039.en.html - discuss at https://freepo.st/freepost.cgi/post/ol7ezsii9z #freepost

Coq, associativity of vectors Show more

Coq, associativity of vectors Show more

Thinking about dependently typed languages has brought back another question: Can you just state the associativity of append on length indexed lists in #Idris or #Agda?

Because Coq you can't because a type mismatch: (a + (b + c)) is not convertible to ((a + b) + c).

That seems to be a pretty annoying problem for the usability of dependently typed languages.

Because Coq you can't because a type mismatch: (a + (b + c)) is not convertible to ((a + b) + c).

That seems to be a pretty annoying problem for the usability of dependently typed languages.

- I'm not sure what the future holds below 7nm, because even at 22nm you are having to deal with quantum tunneling. It only gets worse the smaller you get.

- At the end of the day it has to do with transistor density. The future may be in 3d-stacked die, where transistor density isn't measured in m^2 anymore, but m^3. But that has it's own set of problems, not the least of which is heat dissipation

- GPG/OpenPGP
- 91889DEFD47B86EDACD52D10355C2591C5706C8B

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Interests include: #Coq, #OCaml, #Ocsigen, #Guix, #Libreboot & #Coreboot, #OpenCASCADE; free/libre computing & culture, pure & applied #mathematics & #mechanics

Joined Apr 2017