apl

apl

LambdaConf Tree Manipulation Workshop Videos

The videos for my LambdaConf Tree Manipulation workshop are now online. I was moving through the workshop pretty quickly, and we cover a lot of different topics across a wide range of topics related to APL, so don't expect a very focused lecture or

text editor

ALE: arcfide's line editor

ed(1) meets Emacs implemented in APL, a la Acme. ALE is a line editor that I have created because I can.

apl

Un-directed programming

Various forms of "directed" programming have become very popular these days. However, I find that many of these are too restrictive and not conducive to what I consider a "human" creative approach to programming. Sometimes, it's nice to have a

social media

Playing around with Scuttlebutt/Patchwork

So I'm playing around with Scuttlebutt and Patchwork. I've even set up a pub server: social.sacrideo.us Specifically intended to help those who are interested in keeping up with my own social/technical network. While I can't stand normal social media, perhaps this

apl

Paper is dead, long live Paper Programming

It should come as no surprise to anyone who reads this blog that I love to program "by hand." I happen to practice a degree of ascetical programming practices, and I believe that they help me to more deeply internalize and understand

apl

User Command for Co-dfns

Co-dfns has a new User Command based interface!

job

Dyalog is hiring!

Are you a fast learner who likes to solve real problems with a passion for programming? How about a unique, one of a kind opportunity to work in diverse fields in cutting edge research and development?

apl

Dyalog APL in Jupyter

I just wanted to make a short post mentioning a new repository that has gone live at Dyalog: https://github.com/Dyalog/dyalog-jupyter-kernel Now you should be able to use Dyalog APL inside of a Jupyter notebook. Very cool! As I understand it, this

apl

Decoding Inverses

Everyone has something to learn, and we should always be open to those new things the world around is showing us. I learned a "new" trick in APL recently from none other than an attendee of one of my APL workshops (thanks

codfns

Getting Started with APL

I have been giving a number of talks and workshops on APL recently, and somewhat to my surprise, people are interested! However, this has led to a small dilemma, because the next question seems to be, "How do I get started?" You

apl

FunctionalConf 2017: APL Patterns vs. Anti-patterns

https://youtu.be/v7Mt0GYHU9A

co-dfns

Co-dfns 2017 Report

A great deal of work has gone into this year to improve and expand the capabilities of Co-dfns. The following presentation describes these updates in brief. Co-dfns 2017 Presentation at Dyalog '17 You can find the video recording of this presentation at Dyalog TV.

apl

APL Style: Patterns and Anti-patterns in APL

I gave the following talk at Dyalog '17 this year. I think it was a lot of fun, but I had to go through the slides pretty fast. I encourage anyone interested in the topic to go through the Sway presentation more carefully in

apl

An Interview about LambdaConf Workshop

The following is an interview that I was asked to give about my upcoming LambdaConf workshop. I have reproduced it here because it has been removed from the original host location. Aaron Hsu Interview Aaron Hsu will be giving a talk. He will be

co-dfns

Co-dfns 2017.04.1

Release Page This is a pretty small but significant release. We've cleaned up a few things, added the last missing primitives, improved output a bit, and begun the work towards recursion and branching. Regressions Currently Windows is the only tested environment Currently only NVIDIA

apl

LambdaConf 6-hour Leap Workshop Intensive on APL

For those who are interested in getting an intensive experience with Modern, Functional Array Programming with Co-dfns, APL, and Dyalog, consider attending my 6-hour intensive 1 day workshop at Lambda Conf 2017. LambdaConf is a functional programming conference, with 80 sessions covering functional programming,

co-dfns

Co-dfns Release 2016.9.1

Latest Release: https://github.com/arcfide/Co-dfns/releases/latest 2016.9.1 Release: https://github.com/arcfide/Co-dfns/releases/tag/v2016.9.1 We are pleased to release the September edition of the Co-dfns compiler! This iteration focuses on improving polish and fixing up

apl

Scripting with APL: Convert GNUCash XML format to Ledger CLI

I want to play around with the Ledger CLI software, but this requires that I have something to work with. I have previously kept most of my stuff in the GNUCash program, and while I found a few conversion utilities around, I didn't find

apl

Co-dfns 0.4 Released: Enter the Fusion

I have released v0.4 of the Co-dfns compiler. This release focuses on overcoming the performance bottlenecks that were plaguing earlier versions by using the DWA infrastructure. You can now expect good performance on scalar computation on both the CPU and the GPU, though

apl

Improving Performance with DWA

In my 2014 Dyalog presentation I demonstrated the Co-dfns compiler and its ability to target GPU and CPU platforms without altering the source code. Unfortunately, at the time, there was a regression in the system that lead to slower-than-interpreter results. I did get that

apl

Modern Cleanroom Software Engineering in an APL Context

The Problem I've spent some time with Cleanroom Software Engineering attributed to Harlan Mills. Without a doubt it is my favorite development technique. In a nutshell, CSE gives me the following benefits: Certified reliability metrics of the code base Formal verification of code correctness

apl

Co-dfns v0.3 Released

After a long wait, I happily announce the first open-source release of the Co-dfns compiler. This version provides the features demonstrated at the Dyalog '14 conference in Eastbourne, UK. In particular, it supports the Blackscholes benchmark on GPU and CPU and the ability to

apl

Imminent Co-dfns Releases

I've been wanting to get increment Co-dfns releases out to the public for a long time. I think that we (Dyalog and myself) have reached a point where we will be able to do this very shortly. This excites me a great deal, since

apl

Co-dfns Report: Increment 5 Certified

I am pleased to report that I have certified the 5th increment of Co-dfns today. This increment brings the ability to actually run some real benchmarks on the compiler, specifically the Black Scholes benchmark mentioned in my ARRAY '14 paper. This certification took longer

apl

APL a Day #7: Scalar Functions

Scalar functions perform most of the hard labor in an APL program. A scalar function defines a mapping from one or two scalar values to a third value. In math, the addition function maps two numbers to their sum. Many other such functions exist.