paranlee

Below are the steps to get an ARM64 version of Ubuntu running in the QEMU emulator on Windows 10.

Install QEMU

Install for Windows from choco package manager

choco install qemu --version=2021.5.5 -confirm
PS D:\arm64-ubuntu2004\qemu> qemu-system-aarch64 --help

agumonkey

;;; hn.el --- convert hacker news post into org-mode buffer  -*- lexical-binding: t -*-

;; Copyright (C) 2018- Free Software Foundation, Inc.

;; Author: Johan Ponin <johan.ponin.pro@gmail.com>
;; Version: 0.0.1
;; Package-Version: 20181103.0001
;; Keywords: hackernews, org-mode

;; This program is free software; you can redistribute it and/or modify

99z

9front tutorials

Current as of 9front-5966.df2c352ae695

This is a collection of notes on how to complete tasks I've found myself commonly performing while using 9front.

Note that most of what is here is straight from various parts of the 9front FQA, just ordered differently. If not from the FQA, I'll provide the source under the header for the section.

As I'm in the process of learning Plan 9/9front, feel free to comment with suggestions or corrections.

pierrejoubert73

How to add a collapsible section in markdown

1. Example

Click me

Heading

1. Foo
2. Bar
   • Baz

• Qux

dharmatech

Acceleration of Two Objects Connected by a Cord

A ball of mass m1 and a block of mass m2 are attached by a lightweight cord that passes over a frictionless pulley of negligible mass, as shown in the figure below. The block lies on a frictionless incline of angle θ. Find the magnitude of the acceleration of the two objects and the tension in the cord.

Let's solve this problem using Symbolism, a computer algebra library for C#.

Free-body diagram for the ball:

dharmatech

Let's solve the following physics problem using Symbolism, a computer algebra library for C#.

One strategy in a snowball fight is to throw a first snowball at a high angle over level ground. While your opponent is watching the first one, you throw a second one at a low angle and timed to arrive at your opponent before or at the same time as the first one.

Assume both snowballs are thrown with a speed of 25.0 m/s.

The first one is thrown at an angle of 70.0° with respect to the horizontal.

dharmatech

The problem to solve

An example problem from the textbook Physics for Scientists and Engineers by Serway and Jewett:

Let's solve this using Symbolism, a C# library for computer algebra and symbolic computation.

Symbol definitions

dharmatech

Neo4j inspired graph database in Microsoft Access

Here I've clicked on the Book label. The nodes list displays nodes with the Book label. I then clicked on Dune, so the relationships list shows that the AUTHOR of Dune is Frank Herbert who was BORN_IN Tacoma.

Now I've selected the Album label and TheJoyOfMotion node. The relationship lists show that AnimalsAsLeaders RELEASED this album, that Lippincott is a TRACK on this album, and that this track was inspired by Tom Lippincott.

dharmatech

Quotation

Assuming a document system involving multiple authors each with their own documents:

A user should be able to select text in another document and use it as a quotation in their own document.

This quotation should be a link which will take a user back to the referenced text.

This quotation should link to the particular version of the document that is referenced.

dharmatech

;; Generics with return types

#| ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;

  $ petite --script generics.scm

|# ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;

(define (gen-id template-id . args)