Jan 2, 2023

Deploy scripts using Guix G-expressions. Why? How?

Tags: lisp, scheme, guix, software

Dec 18, 2022

Finding the right place to rent in London using a Guile script. Who said Guile is not useful for practical stuff!

Tags: London, lisp, scheme, software

Mar 2, 2017

This is to announce the release of exiftool.el, an emacs lisp wrapper around ExifTool. ExifTool is a command line application supporting reading and writing metadata in various formats including EXIF, XMP and IPTC.

Tags: software, project, freesoftware

Nov 1, 2016

This is a graph I made for contributing to Wikipedia. It shows the energy of a black body as the sum of energies from oscillators with 1 photon, 2 photons, 3 photons, etc.

Tags: physics, gnuplot, software

Aug 30, 2016

A greasemonkey user script that removes the noscript mask on ebay and lets the user browse ebay without enabling javascript…

Tags: javascript, software, greasemonkey

Jul 27, 2016

An elegant bash one liner to generate a passphrase – shuf from coreutils is the secret ingredient.

Tags: software, bash

Jul 20, 2016

Yet another passphrase generator, this time one in bash…

Tags: project, software, bash

Jun 11, 2016

A bash script, run periodically by a cron job, to post the day’s NASA Astronomy Picture of the Day to GNU Social. The script uses GNU Social’s Twitter compatible API to publish notices.

Tags: gnusocial, astronomy, project, software, bash

Mar 24, 2016

SRFI-1 fold and SRFI-41 stream-fold pass arguments to proc in different orders. Violating the principle of least astonishment, this comes as a rather inconvenient surprise to the programmer.

Tags: lisp, scheme, functionalprogramming, software

Dec 11, 2014

Any image can be reconstructed using just a superposition of plane waves of different spatial frequencies. This is a numerical experiment using a NumPy script that reconstructs an image one frequency component at a time.

Tags: math, signals, software

Jul 19, 2012

I came up with the following approach to do line coding without for loops. My approach involves a bit of system theory, modulo 2 arithmetic, and sometimes just tricks founded on simple coincidence. So one is advised to be a little careful while sifting through the logic. But ultimately, the code is terse and fairly elegant.

Tags: signals, matlab, octave, software

Mar 17, 2012

I just decided to write a Python script to convert resistor color codes to resistance values. Later, I also wrote a script to do the reverse - namely to find the color code of a given resistor.

Tags: electronics, python, software, project

Newer posts

Older posts