gmccreight

" copy all this into a vim buffer, save it, then...
" source the file by typing :so %
" Now the vim buffer acts like a specialized application for mastering vim

" There are two queues, Study and Known.  Depending how confident you feel
" about the item you are currently learning, you can move it down several
" positions, all the way to the end of the Study queue, or to the Known
" queue.

" type ,, (that's comma comma)

grantslatton

import urllib2
import re
import sys
from collections import defaultdict
from random import random

"""
PLEASE DO NOT RUN THIS QUOTED CODE FOR THE SAKE OF daemonology's SERVER, IT IS 
NOT MY SERVER AND I FEEL BAD FOR ABUSING IT. JUST GET THE RESULTS OF THE 
CRAWL HERE: http://pastebin.com/raw.php?i=nqpsnTtW AND SAVE THEM TO "archive.txt"

xaprb

#!/usr/bin/perl

use strict;
use warnings FATAL => 'all';

use English qw(-no_match_vars);
use Lingua::EN::Fathom;
use TeX::Hyphen;
use List::Util qw(min);

lelandbatey

Description

This simple script will take a picture of a whiteboard and use parts of the ImageMagick library with sane defaults to clean it up tremendously.

The script is here:

#!/bin/bash
convert "$1" -morphology Convolve DoG:15,100,0 -negate -normalize -blur 0x1 -channel RBG -level 60%,91%,0.1 "$2"

Results

yig

JavaScript reference for non-JavaScript programmers

Author: Yotam Gingold
License: Public Domain (CC0)

This document is intended as a reference or introduction to JavaScript for someone familiar with a language like C/C++/Java or Python. It follows best practices and gathers the scattered wisdom from matny stackoverflow questions and in-depth JavaScript essays. It relies on no external libraries.

madjar

import asyncio
import aiohttp
import bs4
import tqdm


@asyncio.coroutine
def get(*args, **kwargs):
    response = yield from aiohttp.request('GET', *args, **kwargs)
    return (yield from response.read_and_close(decode=True))

rikusalminen

def numerical():
    from scipy.integrate import odeint
    from numpy import array

    # [position, mass, velocity, mass flow]

    def acceleration(y, t, v_exhaust=1.0):
        return array([y[2], y[3], v_exhaust * y[3]/y[1], 0.0])

    initial_state = array([0.0, 2.0, 0.0, -1.0])

jvns

dharmatech

The problem to solve

An example problem from the textbook Physics for Scientists and Engineers by Serway and Jewett:

Let's solve this using Symbolism, a C# library for computer algebra and symbolic computation.

Symbol definitions

Reedbeta

# Simulator for depth comparison error (i.e. z-fighting)
# Nathan Reed, June 2015
# Written for Python 3.4; requires numpy

import math
import numpy as np
import optparse

# Parse command-line options
parser = optparse.OptionParser()