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Stefan Siegert sieste

  • Exeter, United Kingdom
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sieste / arch-brother-dcp-j4120dw-installation.md
Last active Oct 16, 2020
Minimal instructions to install Printer/Scanner combo "Brother DCP-J4120DW" under Arch Linux
View arch-brother-dcp-j4120dw-installation.md

General

  • Power up the printer, install cartridges
  • Settings -> Wi-Fi -> Setup-Wizard to connect printer to your network
  • Settings -> Wi-Fi -> TCP/IP, note IP address (mine is 192.168.1.8)
  • check if printer is reachable on the network: ping 192.168.1.8
  • create new user "lp" in group "lp": sudo useradd -s /bin/false -g lp lp

Install printer

  • install driver from AUR: yay brother-dcpj4120dw
@sieste
sieste / config.h
Created Apr 5, 2020 — forked from gregf/config.h
st (simple terminal) config with solarized color scheme
View config.h
/* See LICENSE file for copyright and license details. */
/*
* appearance
*
* font: see http://freedesktop.org/software/fontconfig/fontconfig-user.html
*/
static char font[] = "pragmatapro:pixelsize=16:weight=medium:antialias=true:autohint=true";
static int borderpx = 2;
@sieste
sieste / arch-linux-install.md
Last active Mar 21, 2020 — forked from kylemanna/arch-linux-install.md
Minimal instructions for installing arch linux on an UEFI NVMe system with full system encryption using dm-crypt and luks
View arch-linux-install.md
@sieste
sieste / screencast.sh
Created Mar 21, 2020
screencast: A bash script to simultaneously record audio from mic and video from screen
View screencast.sh
#!/bin/bash
#
# Record screen and microphone audio
# Stefan Siegert 2020, adapted from code by Steven Gordon
#
# Example usage:
# screencast intro-to-datacomms
# The audio and screen will be recorded. Press 'z' to stop.
# Two files will be created: intro-to-datacomms-audio.flac, intro-to-datacomms-screen.mp4
@sieste
sieste / screencast.md
Last active Mar 16, 2020
Create a screencast from Linux command line
View screencast.md
View mth3028_3.R
# Example 3.12
x = c(0.02, 0.19, 0.27, 0.28, 0.32, 0.50, 1.08, 1.42, 2.23)
# Example 3.13
x = c(-0.63, 0.18, -0.84, 1.60, 0.33, -0.82, 0.49, 0.74, 0.58)
y = c(-0.31, 1.51, 0.39, -0.62, -2.21, 1.12, -0.04, -0.02, 0.94)
# Example 3.16
x = c(0.38, 0.59, 0.06, 0.08, 0.22, 1.45, 0.61, 0.27, 0.48, 0.07)
B = 1000
View mth3028_3.R
tt = seq(as.Date('2020-02-25'), as.Date('2020-03-08'), by='1 day')
I = c(13, 13, 15, 20, 23, 36, 39, 51, 85, 116, 164, 209, 273)
# Example 3.12
x = c(0.02, 0.19, 0.27, 0.28, 0.32, 0.50, 1.08, 1.42, 2.23)
# Example 3.13
x = c(-0.63, 0.18, -0.84, 1.60, 0.33, -0.82, 0.49, 0.74, 0.58)
y = c(-0.31, 1.51, 0.39, -0.62, -2.21, 1.12, -0.04, -0.02, 0.94)
@sieste
sieste / arch-linux-encrypted-kernel-downgrade
Created Nov 14, 2016
Minimal instructions for kernel downgrade on arch linux with full system encryption using dm-crypt and luks
View arch-linux-encrypted-kernel-downgrade
# Kernel downgrade on ARCH Linux with encrypted file-system
#
# assumes you followed https://gist.github.com/mattiaslundberg/8620837 to set up your system
#
# Credits:
# https://stephentanner.com/restoring-grub-for-an-encrypted-lvm.html
# https://wiki.archlinux.org/index.php/Kernel_Panics
# Boot into archiso live USB
View mth3028_1_8.R
n = 10
theta = 1
alpha = 0.05
lo = up = numeric(10000)
for (i in 1:10000) {
x = rexp(n, 1/theta)
lo[i] = ((1-alpha)^(-1/n) - 1) * sum(x)
up[i] = (alpha^(-1/n) - 1) * sum(x)
}
xo = rexp(10000, 1/theta)
@sieste
sieste / mth3028_1_7.txt
Last active Jan 28, 2020
MTH3028 Lecture 1.7
View mth3028_1_7.txt
n = 1
theta = 1
alpha = 0.05
lo = up = numeric(10000)
for (i in 1:10000) {
x = rexp(n, 1/theta)
lo[i] = -x / log(alpha)
up[i] = -x / log(1-alpha)
}
mean(theta < lo)
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