Spring 2015 Dyalog Travelogue (An American Tale: Dyalog Goes West)
Concluding Morten and Gitte’s whistlestop tour round Europe before heading to the US (see parts 1 and 2) On Saturday afternoon we passed through London’s Heathrow airport for the third time in 5 days, this time continuing west to JFK, bringing the total for the week to 8,943km plus 300-odd in 3 different cars, 220 […]
Spring 2015 Dyalog Travelogue (The Saga Continues)
Continuing Morten and Gitte’s whistlestop tour round Europe before heading to the US for DYNA15 Day 3: Bramley-Bingen Job interviews done by lunch-time, and we hopped in the car (without lunch) to Heathrow, flew to Frankfurt and finally arrived at Bingen at sunset, just in time for some Weissbier and Flammkücken with the other early arrivals. […]
Spring 2015 Dyalog Travelogue (Ferries, Trains, Planes and Automobiles)
One of my favourite times of the year is the period in March/April where we traditionally start with a visit to the FinnAPL Forest Seminar followed by the APL Germany Spring Meeting. This year there are two new stops to make: the Swedish APL Group has started holding meetings twice a year too – and […]
Exploring Key
In ⍺ f⌸ ⍵, major cells of ⍺ specify keys for the corresponding major cells of ⍵, and f applies to each unique major cell of ⍺ and the major cells of ⍵ having that key. The monadic case f⌸⍵ is equivalent to ⍵ f⌸ ⍳≢⍵. Key is similar to the GROUP BY clause in […]
Solving the 2014 APL Problem Solving Competition – How Tweet It Is
This post is the continuation of the series where we examine some of the problems selected for the 2014 APL Problem Solving Competition. The problems presented in Phase 1 of the competition were selected because they could be solved succinctly, generally in a single line of APL code. This makes them well suited for experimentation […]
