zaz

\documentclass[a4paper]{article}
\usepackage{multicol, amsmath, amsfonts, xcolor}
\usepackage[landscape, margin=0.2in]{geometry}

\title{15.415 Cheat Sheet}
\author{Zaz Brown}
\date{Dec 2021}


\newcommand{\dd}{\mathrm d}

zaz

\documentclass[a4paper]{article}
\usepackage{multicol, amsmath, amsfonts, xcolor}
\usepackage[landscape, margin=0.2in]{geometry}

\title{15.415 Cheat Sheet}
\author{Zaz Brown}
\date{Dec 2021}


\newcommand{\dd}{\mathrm d}

zaz

DEFAULT_NAME="$(git config user.name)"
DEFAULT_EMAIL="$(git config user.email)"
export OLD_NAME="${1:-$DEFAULT_NAME}"
export NEW_NAME="${2:-$DEFAULT_NAME}"
export NEW_EMAIL="${3:-$DEFAULT_EMAIL}"

echo "Old:" $OLD_NAME "<*>"
echo "New:" "$NEW_NAME <$NEW_EMAIL>"
echo "To undo, use: git reset $(git rev-parse HEAD)"

zaz

(defn fizzbuzz?
	"Determines what to print for a given number"
	[x]
	(condp #(zero? (mod %2 %1)) x
		15 "fizzbuzz"
		3 "fizz"
		5 "buzz"
		1 x))

(defn fizzbuzz

zaz

# Zaz Brown
# github.com/zaz/dijkstra
"""An efficient algorithm to find shortest paths between nodes in a graph."""
from collections import defaultdict

class Digraph(object):
    def __init__(self, nodes=[]):
        self.nodes = set()
        self.neighbours = defaultdict(set)
        self.dist = {}

zaz

Keybase proof

I hereby claim:

• I am jb on github.
• I am ht (https://keybase.io/ht) on keybase.
• I have a public key whose fingerprint is 3582 E1C0 B987 41E8 CD01 F6B9 419C A53B DF3C B6C3

To claim this, I am signing this object:

zaz

numbers = [1,3,5,8,10,54,99]
cards   = [5,3,4,6,2]

# get only the values where the distance is greater than 10
numbers.each_cons(2).select {|a,b| b-a>10 } #=> [[10, 54], [54, 99]]

# determine if the hand is a straight
cards.sort.each_cons(5).all? do |series| 
             series.last - series.first == 4
           end #=> true

zaz

#!/bin/bash
DEV="eth0"
ROUTER="192.168.0.1"
MAC="${1:-01:23:45:67:89:ab}"
IP="192.168.0.5/24"

if [[ "${UID}" != 0 ]]; then
	exec sudo "$0" $@
fi

zaz

$(".email").each(function() {
	$(this).html( $(this).html().replace("...", "@").replace(/\.\.\./g, ".") );
	$(this).attr("href", $(this).attr("href").replace("...", "@").replace(/\.\.\./g, ".") );
});

zaz

# Check for an interactive session:
[ -z "$PS1" ] && return

# Bash prompt: user@HOST [ dir ] $
PS1='\[\e[1;32m\]\u@\h [ \[\e[31m\]\w\[\e[32m\] ]$(__git_ps1 " [\[\e[31m\]%s\[\e[32m\]]" 2>/dev/null) \$ \[\e[0m\]'
#PS1='\[\u@\h [ \w ]$(__git_ps1 " (%s)" 2>/dev/null) \$ '  # Black & White

# History file:
shopt -s histappend
HISTCONTROL=ignoredups:ignorespace