calebreister / csv.lua

Created April 28, 2017 17:21

Lua script that converts a CSV file to the LaTeX tabular format

	--To include this file, use
	--dofile('csv.lua') or require('csv')

	--Function to convert a *SV file to a Lua array
	--file: the name of the file to read
	--delim: the delimeter (default ',')
	function dataToTable(file, delim)
	--Set initial values
	if delim == nil then --allow delim to be optional
	delim = ','

calebreister / .emacs

Created July 5, 2016 01:22

Emacs and Nano configuration files with (mostly) matching key combinations.

	(add-to-list 'load-path "~/.emacs.d/lisp")
	(add-to-list 'default-frame-alist '(fullscreen . maximized))

	; Load modules
	(load "sr-speedbar.elc") ;CEDET speedbar in current frame
	(load "modeline-posn.elc") ;Show position of point
	(load "doc-mode.elc") ;Doxygen mode
	(load "lua-mode.elc") ;Lua mode
	(load "markdown-mode.elc") ;Markdown mode
	(load "bind-key.elc") ;Useful keybinding functions

calebreister / resistor.py

Last active May 17, 2021 17:21

Python script to determine optimal resistor combinations. Its arguments are a desired resistance and either 10%, 5% (default), or 1% tolerance value. I intend to refine and expand this code and then implement it in several other languages (Matlab, Lua, TI-BASIC, ...). Based loosely on http://www.qsl.net/in3otd/parallr.html.

	#!/usr/bin/python3

	#Copyright (C) 2016 Caleb Reister

	#This program is free software: you can redistribute it and/or modify
	#it under the terms of the GNU General Public License as published by
	#the Free Software Foundation, either version 3 of the License, or
	#(at your option) any later version.

	#This program is distributed in the hope that it will be useful,

calebreister / ArchInstall-Encrypted.md

Last active January 9, 2017 04:47

This file contains my notes from installing Arch Linux on my new(er) computer. It uses dm-crypt and LUKS to encrypt the entire hard drive (including /boot). So far, it has preformed well. NOTE: some of this is specific to my machine, but the encryption and filesystem setup is not.

Arch Linux w/ Encryption Installation Notes

These are my notes for installing Arch Linux with full-disk encryption on a HDD. The installation process changes significantly for an SSD.

Install system

$ lsblk #list devices
$ timedatectl set-ntp true

I will create the following partition layout...

calebreister / xkcd.py

Last active July 15, 2016 16:42

Python script that downloads xkcd comics to basePath, prepends the comic number to the filename, and puts the alt text in 0-alt.txt. I recommend setting basePath to an absolute path.

	#!/usr/bin/python
	#Download xkcd comics by their index numbers (passed as arguments)
	import sys
	import re
	import json
	from urllib.request import *

	basePath = '/home/caleb/Pictures/Comics/xkcd/'

	#Read alt text file into memory

calebreister / backup.sh

Last active December 15, 2015 07:21

New and updated version of backup.sh. The old script had many limitations and was often unreliable. This script, while requiring slightly more user input, is much more robust.

	#!/bin/sh

	#Find a date in file name:
	#ls \| grep -E $datematch

	increment() {
	# Creates a backup version of a btrfs subvolume and sends it to to an
	# external drive. Assumes there are drives mounted in ./hd and ./bu
	# $1 subvolume to backup
	# $2 date of parent

calebreister / resistors.js

Last active September 3, 2015 06:40

Very useful JavaScript that can approximate a given resistor value using parallel and series configurations. (http://www.qsl.net/in3otd/parallr.html)

	//<![CDATA[

	/* Copyright (C) 2001-2010 Claudio Girardi
	*
	* This program is free software; you can redistribute it and/or modify
	* it under the terms of the GNU General Public License as published by
	* the Free Software Foundation; either version 2 of the License, or (at
	* your option) any later version.
	*
	* This program is distributed in the hope that it will be useful, but

calebreister / unicode.txt

Created May 12, 2015 05:21

A categorized and sorted collection of useful Unicode characters.

	Quick Access:
	± · √ ≠ ≈ ≤≥ ≡
	° ℓ ∠ ∞ ⅇ ⅉ
	∴ ⇒ ⇔ ∵ ∀ ∈ ℝ ℂ
	α β Δδ θ Φφ μ τ Ωω

	Operators: ±∓ ×· ÷ √∛ ≠ ≈ ≤≥ ≪≫ ≡≢ ⨁⊕⊖ ⨂⊗⨀⊙
	Calculus: ∫ ℒ ℱ ∑ ∂ ′
	Special: ∞ ℓ ⇀ ∠∡ ° ∇ ⅇ ⅉ x̄ ∥⊥ ℑ ℜ ℛ ℋ
	Logic: ∴ ⇒ ⇔ ∵ ¬ ∃ ∄ ⋎ ⋏

calebreister / sys_bios_i2c_example.c

Last active August 29, 2015 14:19 — forked from andresv/sys_bios_i2c_example.c

	EDMA3_DRV_Handle* hi2cEdma;
	GIO_Handle i2c_outHandle;
	GIO_Handle i2c_inHandle;
	I2c_Params i2cParams;

	//----------------------------------------------------------------
	// Setup I2C
	//----------------------------------------------------------------
	void I2C_init(EDMA3_DRV_Handle* hEdma) {
	I2c_ChanParams chanParams;

calebreister / background.md

Created April 3, 2015 07:31

useful code snippet from http://stackoverflow.com/questions/954302/how-to-make-a-programme-continue-to-run-after-log-out-from-ssh

Assuming that you have a program running in the foreground, press ctrl-Z, then:

[1]+  Stopped                 myprogram
$ disown -h %1
$ bg 1
[1]+ myprogram &
$ logout

If there is only one job, then you don't need to specify the job number. Just use disown -h and bg. Explanation of the above steps:

Caleb Reister calebreister

Arch Linux w/ Encryption Installation Notes

Install system