camsaul

;;; -*- tab-width: 2 -*-

;;; These four lines go at the beginning of almost every code file. 16-byte iNES header

  .inesprg 1                      ; one bank of program code
  .ineschr 1                      ; one bank of picture data
  .inesmap 0                      ; we use mapper 0
  .inesmir 1                      ; Mirror setting always 1

;;; BANKING

dergachev

OS X Screencast to animated GIF

This gist shows how to create a GIF screencast using only free OS X tools: QuickTime, ffmpeg, and gifsicle.

Instructions

To capture the video (filesize: 19MB), using the free "QuickTime Player" application:

RedBeard0531

// derived from http://en.wikipedia.org/wiki/Algorithms_for_calculating_variance#Parallel_algorithm

function map() {
    emit(1, // Or put a GROUP BY key here
         {sum: this.value, // the field you want stats for
          min: this.value,
          max: this.value,
          count:1,
          diff: 0, // M2,n:  sum((val-mean)^2)
    });