cormullion

using Luxor, Colors

function phyllotaxis(L, startrad, N)
    deviation = 5/8
    goldenangle = mod2pi(Base.MathConstants.φ * 2π)
    lgrad = 0.45L
    lgarea = lgrad^2 * π
    meanarea = lgarea/N
    minarea = meanarea * (1 - deviation)
    maxarea = meanarea * (1 + deviation)

DrSammyD

0-Confirmation Double-Spend Protocol

The problem

Bitcoin-accepting merchants want to receive payment and provide services instantly. However, block construction times can be as much as 10 minutes after the moment a bitcoin transaction is broadcast. In the time after a transaction but before a block’s creation, that transaction can be superseded by another transaction with a larger fee paid to miners.

With the change in the mempool protocol from first-seen-first-included and the rejection of conflicting double spends, to the inclusion of double spends and prioritizing transactions with larger fees attached, 0-conf transactions can no longer be reasonably secure for any sized transaction.

The idea of replace-by-fee was that miners will follow their immediate self-interest, and if miners sporadically act that way, could potentially decrease trust in the system. Now that this approach has been assumed and is the default behavior of miner software, we might consider amending t

hofmannsven

Git

Global Settings

• Related Setup: https://gist.github.com/hofmannsven/6814278
• Related Pro Tips: https://ochronus.com/git-tips-from-the-trenches/
• Interactive Beginners Tutorial: http://try.github.io/
• Git Cheatsheet by GitHub: https://services.github.com/on-demand/downloads/github-git-cheat-sheet/

Reminder

Press minus + shift + s and return to chop/fold long lines!

bkdinoop

# -*- coding: utf-8 -*-
"""
Flask-Login example
===================
This is a small application that provides a trivial demonstration of
Flask-Login, including remember me functionality.

:copyright: (C) 2011 by Matthew Frazier.
:license:   MIT/X11, see LICENSE for more details.
"""

henrik

tmux cheatsheet

As configured in my dotfiles.

start new:

tmux

start new with session name:

spicycode

# 0 is too far from ` ;)
set -g base-index 1

# Automatically set window title
set-window-option -g automatic-rename on
set-option -g set-titles on

#set -g default-terminal screen-256color
set -g status-keys vi
set -g history-limit 10000

myano

#!/usr/bin/env python

import curses
import curses.textpad
import time

stdscr = curses.initscr()

#curses.noecho()
#curses.echo()