Radcliffe’s gists

Radcliffe / banned-books-krause-tx.csv

Last active February 10, 2022 22:57

List of books targeted by TX Rep Matt Krause because they could make students feel uneasy - https://www.npr.org/2021/10/28/1050013664/texas-lawmaker-matt-krause-launches-inquiry-into-850-books

Id	Title	Author	Published
1	2020 Black Lives Matter marches	Markovics, Joyce L.	2021
2	A complicated love story set in space	Hutchinson, Shaun David	2021
3	A lesson in vengeance	Lee, Victoria	2021
4	As far as you'll take me	Stamper, Phil	2021
5	Be dazzled	La Sala, Ryan	2021
6	Black Lives Matter: from hashtag to the streets	Tyner, Artika R.	2021
7	Can't take that away	Salvatore, Steven	2021
8	Follow your arrow	Verdi, Jessica	2021
9	Have I ever told you Black lives matter	King, Shani M.	2021

Radcliffe / million-digits-of-e-factorial-number-system.txt

Created August 11, 2021 13:26

A million digits of e in the factorial number system

This file has been truncated, but you can view the full file.

Radcliffe / umn-open-textbook-library.json

Created August 10, 2021 04:02

UMN Open Textbook Library

This file has been truncated, but you can view the full file.

	[
	{
	"category": "Business",
	"description": [
	"Principles of Accounting is designed to meet the scope and sequence requirements of a two-semester accounting course that covers the fundamentals of financial and managerial accounting. Due to the comprehensive nature of the material, we are offering the book in two volumes. This book is specifically designed to appeal to both accounting and non-accounting majors, exposing students to the core concepts of accounting in familiar ways to build a strong foundation that can be applied across business fields. Each chapter opens with a relatable real-life scenario for today\u2019s college student. Thoughtfully designed examples are presented throughout each chapter, allowing students to build on emerging accounting knowledge. Concepts are further reinforced through applicable connections to more detailed business processes. Students are immersed in the \u201cwhy\u201d as well as the \u201chow\u201d aspects of accounting in order to reinfo

Radcliffe / a049463.py

Last active August 2, 2021 04:11

Python script for sequence A049463, Number of basic interval orders of length n.

	# See https://oeis.org/A049463

	from functools import lru_cache


	@lru_cache(maxsize = None)
	def binom(n, k):
	return 1 if k == 0 else n * binom(n - 1, k - 1) // k

Radcliffe / check-security-updates.sh

Created November 28, 2020 05:15

Check for security updates on an Ubuntu server and send email notifications via Sendgrid

	#!/bin/bash

	# Script to send an email notification via Sendgrid when there are security updates pending for an Ubuntu server.

	# Sendgrid API reference
	# https://sendgrid.com/docs/API_Reference/Web_API_v3/Mail/index.html

	# Bash Guide on if-statements
	# https://tldp.org/LDP/Bash-Beginners-Guide/html/sect_07_01.html

Radcliffe / covid19report.py

Created March 17, 2020 18:41

Python script to display a Covid-19 report

	# This Python 3 script displays a Covid-19 report.
	#
	# Usage: Type the following command in a terminal window.
	# python3 covidreport.py
	#
	# Author: David Radcliffe ([email protected])
	# License: Public domain
	# Date: 17 March 2020

	from datetime import datetime

Radcliffe / circle_plot.py

Last active January 27, 2020 16:22

Circle plot for the state vector of a quantum register

	# File: plot_circles.py
	#
	# This code is used with Qiskit to display the circle plot representation of the state vector
	# of a quantum register. The state vector for an N-qubit quantum register has 2^N components,
	# which are called amplitudes. Each amplitude is a complex number, and the squared magnitudes
	# add up to 1.
	#
	# The circle plot has a circle of radius 1 for each amplitude, with a filled-in circle inside it.
	# The radius of the filled-in circle is equal to the magnitude. The circle also contains a line
	# segment from the center of the circle to the circumference. The line segment is rotated to show

Radcliffe / sperner2020.txt

Created December 28, 2019 03:08

Happy 2020, Emanuel Sperner!

	There are 2020 ways to choose 4 nonempty subsets of {1,2,3,4,5} so that no set contains another.
	(Sperner systems with 4 blocks)


	{{1}, {2}, {3}, {4}}
	{{1}, {2}, {3}, {5}}
	{{1}, {2}, {3}, {4, 5}}
	{{1}, {2}, {4}, {5}}
	{{1}, {2}, {4}, {3, 5}}
	{{1}, {2}, {3, 4}, {5}}

Radcliffe / circular_sudoku_graph.py

Created December 26, 2019 05:32

Draw the Sudoku graph with a circular layout

	"""
	This script draws a Sudoku graph with the vertices arranged in a circle.

	David Radcliffe
	[email protected]
	25 December 2019

	The sudoku_graph() function below is being considered for a future version of NetworkX.
	"""

Radcliffe / generalized-coupon.py

Created October 25, 2019 21:06

Coupon Collector problem with unequal probabilities

	"""
	A generalized coupon collector problem.

	An experiment with n possible outcomes is repeated until each of the possible
	outcomes is observed at least once. Each outcome i has a fixed non-zero
	probability p[i], and each trial is independent of the previous trials.
	What is the expected number of trials?

	For example, what is the expected number of times that two dice must be rolled
	until all of the possible totals (from 2 to 12) have appeared at least once?

David Radcliffe Radcliffe