adrien changed the topic of #ocaml to: Discussions about the OCaml programming language | http://www.ocaml.org | OCaml 4.06.0 release notes: https://caml.inria.fr/pub/distrib/ocaml-4.06/notes/Changes | Try OCaml in your browser: http://try.ocamlpro.com | Public channel logs at http://irclog.whitequark.org/ocaml
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<kakadu> Folks, can we have a language with GADTs but without 2nd order polymorphism?
<kakadu> I'm trying to read a paper about copatterns https://hal.inria.fr/hal-01653261/document
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<kakadu> And in the target language with GADTs and without copatterns this assign polymiorphic type scheme to constructors
<kakadu> And it seems that there is not obvious reason why they are doing that.
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<bartholin> for polymorphism
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<kakadu> But polymorphich without so-called polymorphic recursion is still a polymoirphism. We kind of don't need in presense of GADTs to take a value from the environment, shrink the type and use the value. Or do we?
* kakadu probably doesn't know what β#Γ in typing rules means...
* kakadu sees its using as K::∀β.σ → something
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<gikiam> Hey hey
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<gems> Hey!
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<aantron> dmbaturin: Lwt stack traces used to work with the PPX, not sure about now. i'm actually working on this this weekend or at the beginning of next week. it's the most requested Lwt feature at this point
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<cranmax> Hi every one, I have some python code that uses arrays to do the same numerical calculations that I do in an excel Spreadsheet. I want to rewrite the code in OCaml, What container I may use? Arrays, bigarrays, lists... Or maybe using Lacaml library. Thanks in advance
<companion_cube> maybe give a try to Owl
<companion_cube> it's higher level than lacaml I think
<companion_cube> numerical libs all use bigarrays underneath
<octachron> but then it depends a lot on what numerical computation means, if you need linear algebra Owl is probably a good idea, if you are doing "simple" computation, array might be enough
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<cranmax> I do simple computations
<octachron> If you were not using numpy in python, array may be a good start
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<cranmax> Yes I use it, because the majority of stackoverflow questions are solved in numpy
<octachron> then Owl will be closer to numpy than raw array in term of features and interface
<cranmax> Ok Thanks companion_cube, octachron
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