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@cerisara
cerisara / tex2md.py
Created October 23, 2016 19:40
Fast convert latex to markdown (part of Arxiv2Kindle)
import sys
def getText(l):
l=l.replace('\\citep','')
l=l.replace('\\cite','')
return l
with open(sys.argv[1],'rb') as f : ls = f.readlines()
empty=False
@sigma
sigma / redis-mini.nix
Created April 17, 2016 06:30
minimal #redis #docker image with #nix
{ pkgs ? import <nixpkgs> {} }:
with pkgs;
let
su_exec = pkgs.stdenv.mkDerivation {
name = "su-exec-0.2";
src = fetchurl {
url = https://github.com/ncopa/su-exec/archive/v0.2.tar.gz;
sha256 = "09ayhm4w7ahvwk6wpjimvgv8lx89qx31znkywqmypkp6rpccnjpc";
@Restuta
Restuta / the-bind-problem.jsx
Last active March 16, 2024 00:22
React, removeEventListener and bind(this) gotcha
/* Sometimes it's pretty easy to run ito troubles with React ES6 components.
Consider the following code: */
class EventStub extends Component {
componentDidMount() {
window.addEventListener('resize', this.onResize.bind(this)); //notice .bind
}
componentWillUnmount() {
window.removeEventListener('resize', this.onResize.bind(this));
@erikbern
erikbern / install-tensorflow.sh
Last active June 26, 2023 00:40
Installing TensorFlow on EC2
# Note – this is not a bash script (some of the steps require reboot)
# I named it .sh just so Github does correct syntax highlighting.
#
# This is also available as an AMI in us-east-1 (virginia): ami-cf5028a5
#
# The CUDA part is mostly based on this excellent blog post:
# http://tleyden.github.io/blog/2014/10/25/cuda-6-dot-5-on-aws-gpu-instance-running-ubuntu-14-dot-04/
# Install various packages
sudo apt-get update
@codebrainz
codebrainz / license.txt
Last active May 16, 2025 16:46
MJPEG Player in JavaScript
Copyright 2015 Matthew Brush
Permission is hereby granted, free of charge, to any person obtaining a
copy of this software and associated documentation files (the
"Software"), to deal in the Software without restriction, including
without limitation the rights to use, copy, modify, merge, publish,
distribute, sublicense, and/or sell copies of the Software, and to
permit persons to whom the Software is furnished to do so, subject to
the following conditions:
@jiffyclub
jiffyclub / conda.fish
Last active December 8, 2021 08:46
Activate and deactivate commands for working with conda environments in the fish shell. Currently assumes you are switching to a named environment, not specifying a directory.
function condalist -d 'List conda environments.'
for dir in (ls $HOME/miniconda3/envs)
echo $dir
end
end
function condactivate -d 'Activate a conda environment' -a cenv
if test -z $cenv
echo 'Usage: condactivate <env name>'
return 1

Falsehoods programmers believe about prices

  1. You can store a price in a floating point variable.
  2. All currencies are subdivided in 1/100th units (like US dollar/cents, euro/eurocents etc.).
  3. All currencies are subdivided in decimal units (like dinar/fils)
  4. All currencies currently in circulation are subdivided in decimal units. (to exclude shillings, pennies) (counter-example: MGA)
  5. All currencies are subdivided. (counter-examples: KRW, COP, JPY... Or subdivisions can be deprecated.)
  6. Prices can't have more precision than the smaller sub-unit of the currency. (e.g. gas prices)
  7. For any currency you can have a price of 1. (ZWL)
  8. Every country has its own currency. (EUR is the best example, but also Franc CFA, etc.)
@MohamedAlaa
MohamedAlaa / tmux-cheatsheet.markdown
Last active November 27, 2025 13:59
tmux shortcuts & cheatsheet

tmux shortcuts & cheatsheet

start new:

tmux

start new with session name:

tmux new -s myname
@hellerbarde
hellerbarde / latency.markdown
Created May 31, 2012 13:16 — forked from jboner/latency.txt
Latency numbers every programmer should know

Latency numbers every programmer should know

L1 cache reference ......................... 0.5 ns
Branch mispredict ............................ 5 ns
L2 cache reference ........................... 7 ns
Mutex lock/unlock ........................... 25 ns
Main memory reference ...................... 100 ns             
Compress 1K bytes with Zippy ............. 3,000 ns  =   3 µs
Send 2K bytes over 1 Gbps network ....... 20,000 ns  =  20 µs
SSD random read ........................ 150,000 ns  = 150 µs

Read 1 MB sequentially from memory ..... 250,000 ns = 250 µs