chanshik

import time
import numpy as NP
from redis import StrictRedis as redis

# a 2D array to serialize
A = 10 * NP.random.randn(10000).reshape(1000, 10)

# flatten the 2D NumPy array and save it as a binary string
array_dtype = str(A.dtype)

chanshik

defmodule Loop do
  defmacro while(predicate, do: block) do
    quote do
      try do
        for _ <- Stream.cycle([:ok]) do
          if unquote(predicate) do
            unquote(block)
          else
            throw :break
          end

chanshik

#!/usr/bin/env python

#
# Converts any integer into a base [BASE] number. I have chosen 62
# as it is meant to represent the integers using all the alphanumeric
# characters, [no special characters] = {0..9}, {A..Z}, {a..z}
#
# I plan on using this to shorten the representation of possibly long ids,
# a la url shortenters
#

chanshik

"""
SynapSoft Quiz
http://www.synapsoft.co.kr/jsp/recruit/1611.html

1/N 모양의 분수를 소수로 나타내어 봅시다.
1/2 = 0.5
1/3 = 0.333333...
1/4 = 0.25
1/5 = 0.2
1/6 = 0.166666...

chanshik

Benchmarking Nginx with Go

There are a lot of ways to serve a Go HTTP application. The best choices depend on each use case. Currently nginx looks to be the standard web server for every new project even though there are other great web servers as well. However, how much is the overhead of serving a Go application behind an nginx server? Do we need some nginx features (vhosts, load balancing, cache, etc) or can you serve directly from Go? If you need nginx, what is the fastest connection mechanism? This are the kind of questions I'm intended to answer here. The purpose of this benchmark is not to tell that Go is faster or slower than nginx. That would be stupid.

So, these are the different settings we are going to compare:

• Go HTTP standalone (as the control group)
• Nginx proxy to Go HTTP
• Nginx fastcgi to Go TCP FastCGI
• Nginx fastcgi to Go Unix Socket FastCGI

chanshik

The introduction to Reactive Programming you've been missing

(by @andrestaltz)

---

This tutorial as a series of videos

If you prefer to watch video tutorials with live-coding, then check out this series I recorded with the same contents as in this article: Egghead.io - Introduction to Reactive Programming.

---

chanshik

- name: Install wget package (Debian based)
  action: apt pkg='wget' state=installed
  only_if: "'$ansible_pkg_mgr' == 'apt'"

 

- name: Install wget package (RedHat based)
  action: yum name='wget' state=installed
  only_if: "'$ansible_pkg_mgr' == 'yum'"

chanshik

Direct links to free Springer books (pdf versions)

Graduate texts in mathematics

duplicates = multiple editions

A Classical Introduction to Modern Number Theory, Kenneth Ireland Michael Rosen

A Classical Introduction to Modern Number Theory, Kenneth Ireland Michael Rosen

chanshik

[Unit]
Description=App Redis Sidekick
Requires=docker.service
Requires=etcd.service

After=docker.service
After=etcd.service
After=app-redis.service
BindsTo=app-redis.service

chanshik

ES2015

• ECMAScript 6를 위한 Babel 기본 사용법
• ES6시대의 JavaScript
• 동적인 자바스크립트 앱을 위한 ES6 사용법
• 2015년의 JavaScript와 babel 이야기
• ECMAScript 6 Features
• Es2015 Simple Overview

빌드