jboner

Latency Comparison Numbers (~2012)
----------------------------------
L1 cache reference                           0.5 ns
Branch mispredict                            5   ns
L2 cache reference                           7   ns                      14x L1 cache
Mutex lock/unlock                           25   ns
Main memory reference                      100   ns                      20x L2 cache, 200x L1 cache
Compress 1K bytes with Zippy             3,000   ns        3 us
Send 1K bytes over 1 Gbps network       10,000   ns       10 us
Read 4K randomly from SSD*             150,000   ns      150 us          ~1GB/sec SSD

tmoertel

# Transforming the vanilla recursive fib into the iterative DP version
# through a series of mechanical steps.
#
# For more on converting recursive algorithms into iterative ones, see:
# http://blog.moertel.com/posts/2013-05-11-recursive-to-iterative.html


# original function

def fib(n):

debasishg

General Background and Overview

1. Probabilistic Data Structures for Web Analytics and Data Mining : A great overview of the space of probabilistic data structures and how they are used in approximation algorithm implementation.
2. Models and Issues in Data Stream Systems
3. Philippe Flajolet’s contribution to streaming algorithms : A presentation by Jérémie Lumbroso that visits some of the hostorical perspectives and how it all began with Flajolet
4. Approximate Frequency Counts over Data Streams by Gurmeet Singh Manku & Rajeev Motwani : One of the early papers on the subject.
5. [Methods for Finding Frequent Items in Data Streams](http://citeseerx.ist.psu.edu/viewdoc/download?doi=10.1.1.187.9800&rep=rep1&t

bradmontgomery

How I organize my python projects

This is applicable to both OS X and Linux. I use the same tools on both systems. In this guide, I'm going to set up an environment for a Flask app.

Setup

1. I start by installing pip, virtualenv, then virtualenvwrapper. I seldom use virtualenv directly; I use the wrapper tools instead.
2. I create a virtualenv for my project:

kodekracker

/*
* Note: This template uses some c++11 functions , so you have to compile it with c++11 flag.
*       Example:-   $ g++ -std=c++11 c++Template.cpp
*
* Author : Akshay Pratap Singh
* Handle: code_crack_01
*
*/
 
/********   All Required Header Files ********/

tegila

TUTORIAL

Attach to GPRS Service

-> AT+CGATT = 1
<- OK

Define PDP Context (cid, PDP type, APN)

-> AT+CGDCONT=1,"IP","zap.vivo.com.br"

PurpleBooth

Project Title

One Paragraph of project description goes here

Getting Started

These instructions will get you a copy of the project up and running on your local machine for development and testing purposes. See deployment for notes on how to deploy the project on a live system.

Prerequisites

karenyyng

Table Of Content

Skip to the relevant sections if needed.

• 2-min tutorial to do it the quick-and-dirty-way
• Concepts for resolving Git conflicts
• Setting up different editors / tool for using git mergetool
  • Finding out what mergetool editors are supported
• mergetool simple code example for vimdiff
  • Resolving conflict from a Git pull
• Other great references and tutorials

eestrada

#!/usr/bin/env python
"""How to do regular expressions in sqlite3 (using python)."""
from __future__ import division, absolute_import, print_function, unicode_literals

import re
import sys
import time
import datetime
import sqlite3

bbengfort

# Shell to use with Make
SHELL := /bin/bash

# Set important Paths
PROJECT := # Set to your project name
LOCALPATH := $(CURDIR)/$(PROJECT)
PYTHONPATH := $(LOCALPATH)/
PYTHON_BIN := $(VIRTUAL_ENV)/bin

# Export targets not associated with files