Windows

Goodbye dc, welcome luka: a new RPN calculator for the Terminal

Goodbye dc, welcome luka: a new RPN calculator for the Terminal

The Reverse Polish Notation (RPN) is a method for performing calculations without the need for parentheses. RPN was popularized in the ’70s and ’80s by Hewlett-Packard (HP), that used it in all its scientific and financial calculators. When using calculators from rival Texas-Instruments, which all relied on parentheses, it was easy to lose track of how many parentheses had been opened or closed, often forcing users to re-enter the entire expression from scratch. Those who used an RPN calculator didn’t have these problems, although they had to overcome a small initial learning curve to get used to the new notation.
50 years of Microsoft

50 years of Microsoft

Whether you Like it or not, Microsoft is the world’s largest software maker that, through methods both fair and questionable, has managed to get its products installed on the vast majority of computers on the planet. Today, Microsoft turns 50, and it feels like just yesterday when its two founders, Bill Gates and Paul Allen, assured Ed Roberts that they had a BASIC interpreter ready for his Altair 8800, the first truly personal computer, despite having never seen the Altair or the 8080 processor that powered it.
From melabit to melabit: developing a web site in Jekyll

From melabit to melabit: developing a web site in Jekyll

After the first part dedicated to installing and configuring Jekyll, this second part of these annotated notes dives into developing a Jekyll site using a pre-existing theme. On the other hand, developing a theme for Jekyll from scratch is far beyond my expertise, but those who can do it don’t need to read these notes.
From melabit to melabit: Jekyll, installation and basic configuration

From melabit to melabit: Jekyll, installation and basic configuration

This post is not meant to be a detailed guide on installing and configuring Jekyll; for that, there are excellent guides listed below.1 Instead, this post is a commented collection of notes I took while developing melabit.com/posts/en. They are the result of days and days of trial and error, changes in direction, and research to find the right command. These notes were useful for me to remember what I had done and how I had solved the issues that arose from time to time. They might be useful for you to get everything done more quickly and smoothly.