Matthew Evers MRobertEvers

Tolerances And Uncertainty

Tolerances are usually given as absolutes. I.e. No uncertainty. This is specified in by the American Society of Mechanical Engineers (ASME), although, it could probably be specified case to case. See this thread on the discussion https://www.eng-tips.com/viewthread.cfm?qid=176582. That thread references ASME Y14.5M-1994, section 2.5, Interpretation of Limits.

A newer version of that document is http://www-eng.lbl.gov/~shuman/NEXT/ANGEL2/ASME-Y14-5M-2004-Dimension-Ing-and-Tolerancing.pdf.

OpenGL

OpenGL is a graphics pipeline and specification that defines how to perform graphical operations.

Windowing

OpenGL doesn't handle windowing because windowing is platform specific. A third party library is needed for cross platform windowing.

Sphinx Notes

Docs in another dir

In order to include modules from another directory, import the directory w.r.t. the 'doc' directory. E.g. if you put the docs folder in the top level directory of the project, the sphinx interpreter runs in the docs directory. Thus, to import the top level directory, import ... If you want to import a folder within the top level directory import ../<folder>.

import os
import sys
sys.path.insert(0, os.path.abspath('..'))

Synchronization Objects

Mutexes, Semaphores, etc. are provided by the operating system as a means of synchronization. Their behavior is handled by the operating system.

Normally, on windows/freeRTOS, the scheduler will not context switch into a thread that is waiting on a synchronization object.

See here for windows https://docs.microsoft.com/en-us/windows/desktop/procthread/context-switches

https://stackoverflow.com/questions/40841882/automatically-access-git-submodules-via-ssh-or-https/44630028

Caching Effects In Arrays

https://stackoverflow.com/questions/9936132/why-does-the-order-of-the-loops-affect-performance-when-iterating-over-a-2d-arra

https://stackoverflow.com/questions/11413855/why-is-transposing-a-matrix-of-512x512-much-slower-than-transposing-a-matrix-of?noredirect=1&lq=1

Branch Prediction

https://stackoverflow.com/questions/11227809/why-is-it-faster-to-process-a-sorted-array-than-an-unsorted-array

Android Studio

What is Gradle

Gradle is a generic build system like Make (of course Gradle is more modern). It allows you to run scripts by using gradle.scripts or build.gradle. E.g.

dependencies{
    compile "Package..."
}

Pairing is the process of exchanging security information between two bluetooth devices so they can use an encrypted channel. Bonded means that the devices store a longer term key so that they need not reexchange security information. By that definition, a Bonded device is a paired device.

https://www.silabs.com/community/wireless/bluetooth/knowledge-base.entry.html/2017/05/16/understanding_thebl-sICq

http://blog.bluetooth.com/bluetooth-pairing-part-1-pairing-feature-exchange

https://stackoverflow.com/questions/36396456/bluetooth-difference-between-pairing-and-paging-bonding

	// TopicMatch.cpp : Defines the entry point for the console application.
	//

	#include "stdafx.h"
	#include <vector>
	#include <string>
	#include <iostream>

	using namespace std;

	# Decorators Differences
	https://stackoverflow.com/questions/35572663/using-python-decorator-with-or-without-parentheses