travisdoesmath’s gists

travisdoesmath / arbitrarily_long_hello_world.py

Created December 6, 2020 09:36

	from pprint import pprint

	def poly_from_coefficients(coefs):
	def poly(x):
	p = 0
	for i, coef in enumerate(coefs):
	p += coef * x ** i
	return p

	return poly

travisdoesmath / long_hello_world.py

Last active December 20, 2020 19:41

	alphabet = ' abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ'

	def poly_from_coefficients(coefs):
	def poly(x):
	p = 0
	for i, coef in enumerate(coefs):
	p += coef * x ** i
	return p

	def poly_prime(x):

travisdoesmath / app.js

Last active November 24, 2020 16:26

(N>1)-tuple pendulums are chaotic

	let test = new TuplePendulum({N: 4, thetas:[1, 2, 3], omegas:[0.1,0.2,0.3]})

	var nPendulums = 5

	var pendulums = d3.range(nPendulums).map(x => new TuplePendulum({N: 2*x, thetas: [0.5 Math.PI]}))

	var fadeBackground = false;

	var svg = d3.select("svg")
	width = +svg.attr("width"),

travisdoesmath / app.js

Last active November 24, 2020 02:58

Triple Pendulums are Chaotic

	var nPendulums = 20;

	var pendulums = d3.range(nPendulums).map(x => new Pendulum({theta1: 0.75 * Math.PI + 0.00001*x/nPendulums}))

	var fadeBackground = true;

	var svg = d3.select("svg")
	width = +svg.attr("width"),
	height = +svg.attr("height"),
	g = svg.append("g").attr("transform", "translate(" + width.5 + "," + height.5 + ")");

travisdoesmath / app.js

Last active April 19, 2020 05:26

Double Pendulums are Still Chaotic

	var nPendulums = 60;

	var pendulums = d3.range(nPendulums).map(x => new Pendulum({m2: 1 + 0.01x/nPendulums, theta1:0.75Math.PI}))

	var fadeBackground = true;


	var svg = d3.select("svg")
	width = +svg.attr("width"),
	height = +svg.attr("height"),

travisdoesmath / data.csv

Last active November 13, 2019 03:54

Comfy Weather

We can't make this file beautiful and searchable because it's too large.

	,STNID,min_temp,max_temp,annual_precipitation,Latitude,Longitude,Name,FIPS_COUNTY,COUNTY_NAME,AVG_WEEKLY_WAGE
	0,USC00010063,28.5,90.1,58.24,34.2553,-87.1814,ADDISON,01133,"Winston County, Alabama",721
	1,USC00010160,31.4,90.9,55.62,32.9453,-85.9481,ALEXANDER CITY,01123,"Tallapoosa County, Alabama",645
	2,USC00011324,25.8,91.7,53.66,32.8236,-85.6561,CAMP HILL 2NW,01123,"Tallapoosa County, Alabama",645
	3,USC00010178,31.0,92.7,56.17,33.1272,-88.155,ALICEVILLE,01107,"Pickens County, Alabama",735
	4,USC00010252,31.9,91.8,59.97,31.3072,-86.5225,ANDALUSIA 3 W,01039,"Covington County, Alabama",693
	5,USC00010260,26.4,89.8,57.93,34.9092,-87.2747,ANDERSON,01077,"Lauderdale County, Alabama",674
	6,USC00010369,29.4,89.9,58.15,33.2942,-85.7789,ASHLAND 3 ENE,01027,"Clay County, Alabama",661
	7,USC00010390,29.8,90.2,56.89,34.7753,-86.9508,ATHENS,01083,"Limestone County, Alabama",917
	8,USC00010655,27.3,91.2,53.21,34.6908,-86.8825,BELLE MINA 2 N,01083,"Limestone County, Alabama",917

travisdoesmath / double_pendulum.js

Last active January 6, 2018 13:40

Double Pendulums are Chaotic

	Array.prototype.scalarMultiply = function(x) { return this.map(function(d) { return x * d; }); }

	var l1 = 1, l2 = 1,
	m1 = 1, m2 = 1,
	G = 9.8;

	var theta1 = 0.49*Math.PI,
	theta2 = 1.0*Math.PI,
	p1 = 0,
	p2 = 0;

travisdoesmath / golden.js

Last active April 20, 2020 08:35

Un/curling Golden Squares with Continuous Intermediate Squares

	function generateTransformations(T, n) {
	let T_n = {scale:1, angle:0, t_x:0, t_y:0};
	let matrices = [T_n];
	for (let i = 0; i < n; i++) {
	T_n = composeTransformations(T_n, T)
	matrices.push(T_n);
	}
	return matrices
	}

travisdoesmath / index.html

Last active December 28, 2017 20:39

Animated Golden Ratio Squares

travisdoesmath / index.html

Last active December 26, 2017 10:14

Golden Spiral Squares

Travis Taylor travisdoesmath