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ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 09 Mar 2021 11:58:47 +0100 From: Alan Schmitt To: "lwn" , "cwn" , caml-list@inria.fr, comp@lists.orbitalfox.eu Date: Tue, 09 Mar 2021 11:58:45 +0100 Message-ID: <87wnugd256.fsf@m4x.org> MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="=-=-=" Subject: [Caml-list] Attn: Development Editor, Latest OCaml Weekly News Reply-To: Alan Schmitt X-Loop: caml-list@inria.fr X-Sequence: 18421 Errors-To: caml-list-owner@inria.fr Precedence: list Precedence: bulk Sender: caml-list-request@inria.fr X-no-archive: yes List-Id: List-Help: List-Subscribe: List-Unsubscribe: List-Post: List-Owner: List-Archive: Archived-At: --=-=-= Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: base64 SGVsbG8NCg0KSGVyZSBpcyB0aGUgbGF0ZXN0IE9DYW1sIFdlZWtseSBOZXdzLCBmb3IgdGhlIHdl ZWsgb2YgTWFyY2ggMDIgdG8gMDksDQoyMDIxLg0KDQpUYWJsZSBvZiBDb250ZW50cw0K4pSA4pSA 4pSA4pSA4pSA4pSA4pSA4pSA4pSA4pSA4pSA4pSA4pSA4pSA4pSA4pSA4pSADQoNCldvcmtpbmcg 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OCaml Weekly News

Previous Week<= /a> Up Next Week

Hello

Here is the latest OCaml Weekly News, for the week of March 02 to 09, 2021.

Working on an app to learn and execute OCaml on iPhone/iPad/Ma= c for beginners

Archive: https://discuss.= ocaml.org/t/working-on-an-app-to-learn-and-execute-ocaml-on-iphone-ipad-mac= -for-beginners/7392/1

Nathan Fallet announced

I started to work on a new project recently: My goal is to provide an iOS app for beginners to learn OCaml and practice = on their device. I think it is a good idea to get started easily.

Here are some screenshots of what I=E2=80=99ve done so far:

3D=

I=E2=80=99m open to feedback and opinion about this project idea

Nathan Fallet then added

I made it available for pre order on the App Store - I will keep improving = it with time, and I think it can be a great tool for beginners

https:= //apps.apple.com/app/ocaml-learn-code/id1547506826

Yawar Amin replied

This is really cool. I just want to point out that your app is the sole sea= rch result for 'OCaml' in the App Store. So that's a first :-)

Incidentally, there is an 'OCaml Toplevel' app on the Android Play Store: https://play.google.com/store/apps/details?id=3Dfr.vernoux.ocaml

Your app looks more sophisticated though. Hopefully one day we have somethi= ng like Swift Playgrounds and people can start learning OCaml interactively on their devices directly.

ERic (Entity-Relation interactive calculator) version 0.3

Archive: https://discuss.ocaml.org/t/ann-er= ic-entity-relation-interactive-calculator-version-0-3/7408/1

Damien Guichard announced

The programming languages zoo is a= great resource for wanna-be interpreter/compiler writers. The ICFP 2000 programming contest is another great resource for wanna-be ray tracers. However until now there has been no OCam= l resource for wanna-be Knowledge Representation tool-ers. This makes sound like KR tool is a more difficult = area than other projects. ERic v0.3 demonstrates the opposite as it's about 1200 lines size (lexer & hand-w= ritten parser included) and reads/writes a Conceptual Graph= Interchange Format (CGIF) notation.

Functional Programming User Study (Specifically in OCaml)

Archive: https://discuss.ocaml.org/t/functional= -programming-user-study-specifically-in-ocaml/7410/1

Ahan Malhotra announced

We are doing user studies to help us understand how to help people understa= nd and navigate complex information about programming documentation, specifically in OCaml. You will complete = a series tasks that help us understand working memory and how you navigate a new interface. After examining a layo= ut of the data (interface) for a short, predetermined amount of time, you will be asked a set of comprehension and/= or qualitative questions to measure whether the methods of presenting this information has any impact on your p= erformance.

The study will take around 55 minutes, and you will be entered into a lo= ttery for a $150 Amazon gift card as compensation for your time.

A bit more about this study

The user study will be done virtually on Zoom. You will be asked to various= tasks with the interface. The interface is deployed as a public web application so you don=E2=80=99t have to instal= l anything. This research is governed by Harvard University's Committee on the Use of Human Subjects.

Eligibility

You also don=E2=80=99t have to be an expert in anything to participate. You= just need to be fluent in English and over 18 years of age.

If you are interested, please fill out this survey to confirm your eligibil= ity, and we will follow up to schedule the study session: https://form= s.gle/q6vkyEE2tSjjZoiSA

If you have any questions, please email ahanmalhotra@college.harvard.edu.

OCaml 4.12.0 released (with 4.11.2 too)

Archive: https://discuss.ocaml.org/t/ocaml-4-12-0-released-with-= 4-11-2-too/7358/13

Continuing this thread from last week, Hannes Mehnert= said

Congratulations to the new release. For the curious who intend to install a= flambda version of 4.12 and are surprised that ocaml-variants.4.12.0+flambda does not exist, from this thread the opam layout has changed, and now the following works: 

$ opam sw create <my-switch-name> --pack=
ages=3Docaml-variants.4.12.0+options,ocaml-options-only-flambda

There are more configuration options available, take a look at the output o= f opam search ocaml-option for all options. (I've not been involved with this development. I don't quite under= stand why there is for each Y a ocaml-option-Y and a ocaml-options-only-Y.) I als= o have not figured out whether there's a way to pass -O3 in the just created switch.

Maybe it is worth to embed such information in the very nicely styled OCaml= manual (considering that opam got quite some traction over the years and is recommended for OCaml developers)?

Other OCaml News

Old CWN

If you happen to miss a CWN, you can send me a message and I'll mail it to you, or go take a loo= k at the archive or the <= a href=3D"https://alan.petitepomme.net/cwn/cwn.rss">RSS feed of the archive= s.

If you also wish to receive it every week by mail, you may subscribe online.

Alan Schmitt

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