Алексей Данчин Aleksey-Danchin

nicle

Aleksey-Danchin / det.js

Created April 10, 2015 09:55

Determinant of quadratic matrix

	function det (argStr) {
	var numbers = argStr.split(' ').map(Number),
	length = Math.sqrt(numbers.length);

	if ((length % 1) !== 0) return false;
	if (length === 1) return numbers[0];
	if (length === 2) return numbers[0] * numbers[3] - numbers[1] * numbers[2];

	var matrica = [];
	for (var i = 0; i < length; i++) {

Aleksey-Danchin / isIntersection.js

Last active August 29, 2015 14:19

Функция определения факта пересечения двух отрезков на 2-х мерной декартовой системе координат.

	function isIntersection (x1, y1, x2, y2, x3, y3, x4, y4) {
	var point1 = {x: x1, y: y1},
	point2 = {x: x2, y: y2},
	point3 = {x: x3, y: y3},
	point4 = {x: x4, y: y4};

	var line1 = {},
	line2 = {};

	init();

Aleksey-Danchin / getSimpleArray.js

Last active August 29, 2015 14:20

Функция возвращает массив всех простых чисел меньших или равных единственному аргументу.

	function getSimpleArray (N) {
	var preparation = new Int8Array(N + 1), retArray = [], i, j;
	if (N >= 2) retArray.push(2);
	for (i = 3; i <= N; i += 2) {
	if (preparation[i] !== 0) continue;
	retArray.push(i);
	j = i * 2;
	while (j <= N) {
	preparation[j] = 1;
	j += i;

Aleksey-Danchin / setIntervalControlling.js

Created May 31, 2015 22:13

setIntervalControlling

	function setIntervalControlling (callback, time) {
	var startMoment = (new Date).getTime(),
	number = 0, timeOfLoop = 0, difference = 0,
	realTime = time, minStep = Math.pow(2, -4);

	var loop;

	__restart();

	return { stop: function () { clearInterval(loop); } };

Aleksey-Danchin / insertSort.js

Created July 15, 2015 09:04

Sort by Insert Method.

Aleksey-Danchin / binSum.js

Created July 15, 2015 09:38

Bitwise suma.

Aleksey-Danchin / FirstTimeUbuntu

Last active August 29, 2015 14:25

First time Ubuntu softwares install command.

sudo apt-get install thunderbird apache2 mysql-server php5-mysql php5 libapache2-mod-php5 php5-mcrypt git gitk npm vim htop ssh traceroute vlc

Aleksey-Danchin / formated.js

Last active October 17, 2015 06:31

Форматирование страницы в firefox.

	// Удаление шапки в которой написн вариант.
	$('div.header').remove();

	// Удаление номеров каждого задания.
	var elements = $('.nobreak.pbody').find('span');
	for (var i = 0; i < elements.length; i++) {
	var element = $(elements[i]),
	text = element.text(),
	index = text.indexOf('.'),
	text = '№ ' + text.substr(0, index) + ')';

Aleksey-Danchin / isIntersection.js

Created January 21, 2016 22:49

isIntersection (v2 teory)

	function isIntersection (x1, y1, x2, y2, x3, y3, x4, y4) {
	var angles = [
	getAngleOf(x2, y2, x1, y1, x3, y3) + getAngleOf(x2, y2, x1, y1, x4, y4),
	getAngleOf(x4, y4, x3, y3, x1, y1) + getAngleOf(x4, y4, x3, y3, x2, y2),
	getAngleOf(x1, y1, x2, y2, x3, y3) + getAngleOf(x1, y1, x2, y2, x4, y4),
	getAngleOf(x3, y3, x4, y4, x2, y2) + getAngleOf(x3, y3, x4, y4, x1, y1)
	];

	var sum = angles[0] + angles[1] + angles[2] + angles[3];

Aleksey-Danchin / cat.js

Created June 27, 2016 11:54

Скрипт поика разреза на одинаковые части.