jj's useful and ugly pages

Here you find

The FXT algorithm library
Some bit wizardry and algorithms (from FXT)
The book "Matters Computational" (was: "Algorithms for Programmers")
A collection of FFT routines
the HFLOAT package: high precision computations
the arctan page: fine arctan relations for Pi
tables of mathematical data
pari/gp scripts
Yet another hakmem mirror
A pointer to a book on PI=3.1415... German, English translation, there is also a French translation.
Configuration: emacs
Configuration: zsh/bash (plus some scripts)
Configuration: X11 and ctwm
A simple memory benchmark: memxfer
A very useful replace script
A bugfix for pdiff
Copies of spam emails advertising fake conferences
Things that do not fit elsewhere are in the unsorted section

... but no gifs at all ...

My ugly pages are kindly hosted by coresystems
Until March-2006 the pages were hosted by TMT
Thanks goes to both teams!

contacting me

Send useful email to

jj (Jörg Arndt)

< arndt (AT) jjj (DOT) de >

Please use a meaningful subject for your email. Don't make me guess what you mean. I much prefer ASCII (plain text) over HTML format

Due to the insane amount of incoming SPAM I use mail filtering. Mail sent to jj@jjj.de goes directly into the bit bucket, I'll never see it.

Kindly refrain from inviting me to "social" or "professional" networks, I bloody hate that stuff.

Last modified 2012-February-26 (20:05)

A last cite about my pages:
Auf Deiner Homepage war ich auch schon. Langweilst Du Dich eigentlich sehr? Ich kann mir nichts anderes vorstellen, denn wer soviel Geduld aufbringt eine solche Schwachsinnspage zu erschaffen muß sich einfach langweilen.
Gruß, Petra