mirsahib

Install and Create Emulators using AVDMANAGER and SDKMANAGER

TL;DR

For generic skin emulator with default apis (without google apis):

1. List All System Images Available for Download: sdkmanager --list | grep system-images

2. Download Image: sdkmanager --install "system-images;android-29;default;x86"

mirsahib

app.post('/login', function(req, res) {
    console.log(res);
    passport.authenticate('local', function(err, user, params) {
      if (req.xhr) {
        //thanks @jkevinburton
        if (err)   { return res.json({ error: err.message }); }

        // e.g. in auth.js:
        // if (!user.emailVerified) { return done(null, false, { message: 'Email is not verified. Please check your email for the link.' }); }
        if (!user && params) { return res.json({error : params.error}); }

mirsahib

A simple guide to have running the os161 kernel in Arch Linux

This are some notes for the course OS 161 from ops-class.org (based on the OS 161 course from Harvard).

#Geting started

You will need some tools. A nice Text Editor or a fancy IDE for C, I usually go for gedit, or sometimes vim.

Then you will need to install all the toolchain for the course plus some other tools

mirsahib

ffmpeg

Converting Audio into Different Formats / Sample Rates

Minimal example: transcode from MP3 to WMA:
ffmpeg -i input.mp3 output.wma

You can get the list of supported formats with:
ffmpeg -formats

Convert WAV to MP3, mix down to mono (use 1 audio channel), set bit rate to 64 kbps and sample rate to 22050 Hz:

mirsahib

Installing a particular version of FireFox on Linux

1. Does an existing version of firefox exist?

   firefox --version
   

   If not, skip to (3).

mirsahib

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

mirsahib

procedure karatsuba(num1, num2)
  if (num1 < 10) or (num2 < 10)
    return num1*num2
  /* calculates the size of the numbers */
  m = max(size_base10(num1), size_base10(num2))
  m2 = m/2
  /* split the digit sequences about the middle */
  high1, low1 = split_at(num1, m2)
  high2, low2 = split_at(num2, m2)
  /* 3 calls made to numbers approximately half the size */