Functional Reactive Programming (FRP) is becoming an increasingly common way to structure event- driven code, but the term "FRP" actually refers to a large body of increasingly diverse work. This talk will quickly cover the basics of FRP, and then go into a couple different formulations of FRP that people are beginning to use. We will explore how these formulations fit together historically and th
I am a big fan of Dave Whyte’s vector animations, like this one: It was generated using a special animation language called Processing (here is Dave’s code). While it seems powerful, Processing it is not very elegant in my opinion ; this post shows how to do similar animations using two Python libraries, Gizeh (for the graphics) and MoviePy (for the animations). Gizeh and Moviepy Gizeh is a Python
In this post I give a minimalistic version of Sam Lavigne’s Videogrep and use it to promote world peace. This week Sam Lavigne wrote a very entertaining blog post introducing Videogrep, a Python script that searches through dialog in videos (using the associated subtitles file), selects scenes (for instance all scenes containing a given word), and cuts together a new video. The script on Github im
In the Wolfram Language a little code can go a long way. And to use that fact to let everyone have some fun, today we’re introducing Tweet-a-Program. Compose a tweet-length Wolfram Language program, and tweet it to @WolframTaP. Our Twitter bot will run your program in the Wolfram Cloud and tweet back the result. One can do a lot with Wolfram Language programs that fit in a tweet. Like here’s a 78-
Parametricity: Money for Nothing and Theorems for Free Posted by Bartosz Milewski under Category Theory, Functional Programming, Haskell, Programming, Type System [13] Comments I’m not fond of arguments based on lack of imagination. “There’s no way this code may fail!” might be a sign of great confidence or the result of ignorance. The inability to come up with a counterexample doesn’t prove a the
Note: This is all written for Python 2.7.3. These details might be different in other versions of Python – especially 3+! Attempting to escape a sandbox is always a fun challenge. Python sandboxes are no exception. In a static language, this is usually done by analyzing the code to see if certain functions are called, or wrapping the dangerous functions with code that does validation. However, th
Nu Game Engine Live Nu Game Engine Support on Discord here - https://discord.gg/BN79RxYAjD So... just what is the Nu Game Engine? "The Nu Game Engine is the world's first practical functional 2D and 3D cross-platform game engine. Built in F#, it offers a declarative MVU-based API called MMCC (Model-Message-Command-Content). Additionally, we're now providing an even easier to learn ImGui-inspired A
shell-conduit: Write shell scripts in Haskell with Conduit As part of my series of write-about-personal-projects, my latest obsession is writing shell scripts with Michael Snoyman’s Conduit. Here is my package, shell-conduit. It’s still in the experimental phase, but I don’t forsee any changes now for a while. Bash is evil I hate writing scripts in Bash. Until now, it was the easiest way to just w
Getting value out of Chestnut? Consider making a small donation. Chestnut is a Clojure/ClojureScript application template. It takes the pain out of getting a working ClojureScript setup with live reloading plus a browser connected REPL. It provides a solid default configuration for a REPL driven workflow, a ClojureScript setup with separate dev/prod/test builds, Figwheel integration, and a basic s
20 Sep 2014 While studying the illumos queue implementation I came across a line of code that left me quite perplexed. #define MQ_ALIGNSIZE 8 /* 64-bit alignment */ ... temp = (mqhp->mq_maxsz + MQ_ALIGNSIZE - 1) & ~(MQ_ALIGNSIZE - 1); I knew it had something to do with alignment on a 64-bit boundary, but just how the hell was it doing it? Why is it subtracting one from the alignment size? Why is i
これで全部の問題に解説をつけられた。 解くより解説書くほうがめんどい…… りんごさんが主催した全問DPのコンテストの、全問題の解説＆ソースコード記事へのリンクです。 コンテストのページはhttp://tdpc.contest.atcoder.jp/ Typical DP Contest A コンテスト - simezi_tanの日記 Typical DP Contest B ゲーム - simezi_tanの日記 Typical DP Contest C トーナメント - simezi_tanの日記 Typical DP Contest D サイコロ - simezi_tanの日記 Typical DP Contest E 数 - simezi_tanの日記 Typical DP Contest F 準急 - simezi_tanの日記 Typical DP Contest G - 辞書順
Valve is investing in OpenGL to hedge themselves against Microsoft. Some well-known developers have written about the deficiencies in the API. A few competing, proprietary APIs have popped up. In an effort to remain competitive, Khronos announces glnext: a ground-up rethinking of the OpenGL and OpenGL ES APIs. This post will look at developments in the OpenGL ecosystem over the last couple of year
Working with large volumes of data is challenging, but Blosc2 offers unique tools to facilitate processing. Blosc2 is a powerful data compression library designed to handle and process large datasets effectively. One standout feature is its support for lazy expressions and persistent and dynamic reductions. These tools make it possible to define complex calculations that execute only when necessar
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Raw system calls for Rust