kdb programming challenge – rotating substitution cipher

Matt Doherty kdb+ 4 Comments

Puzzle 3 – Rotating Substitution Cipher In cryptography one of the simplest forms of encryption is the substitution cipher, where you take each letter and pick a replacement for it. Encryption is then as simple as substituting each letter in your message with the replacement letter from the cipher. This type of encryption is usually not difficult to break, since …

Matt Dohertykdb programming challenge – rotating substitution cipher

WebSockets, HTML5 and kdb+

Glen Smith kdb+ 6 Comments

The aim of this post is to introduce the idea of using HTML5 and kdb+ together. HTML is a markup language used to build web pages and HTML5 is the latest version. It comes with many new features but one we will focus on is WebSockets which allows us to easily send and receive data from kdb+. WebSockets allows web …

Glen SmithWebSockets, HTML5 and kdb+

q programming challenge – Narcissistic Numbers

Jamie Grant kdb+ 6 Comments

This is the second in an occasional series of q challenges we’ll post on the blog. Please get involved by posting your own solutions in the comments (prior to revealing the solution). As we get through the backlog of challenges that have been posed and completed by the AquaQ team, future challenges will be conducted ‘live’ on the blog, with …

Jamie Grantq programming challenge – Narcissistic Numbers

kdb programming challenge – Pascal’s Triangle

Matt Doherty kdb+ 9 Comments

Hello and welcome to the hotly anticipated inaugural post of the AquaQ Analytics q programming challenge blog! Hopefully our humble website can handle the inevitable onslaught of puzzle-solving traffic. In this blog we will try to keep you entertained with a series of interesting computational or mathematical problems, and their solutions in kdb+/q. The solutions will be initially hidden for …

Matt Dohertykdb programming challenge – Pascal’s Triangle