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// Based on https://gist.github.com/NikolayIT/d86118a3a0cb3f5ed63d674a350d75f2
// With some tweaks
// This file is licensed under MIT license

public class LinearRegression
{
    public static double MinimumLength { get; } = 3;
    public double Average { get; private set; } = 0;
    public double R2 { get; private set; } = 1;
    public double Slope { get; private set; } = 0;

leocb

C pointers Cheatsheet

Increment / Decrement

Pointer action	Memory Address	Memory Contents
p	Yes, it's an address	No, this returns the address
*p	No, this dereferenced the pointer	Yes, this returns the value at that address
*p++	Incremented after value is read	Unchanged
*(p++)	Incremented after value is read	Unchanged

leocb

Instructions are only for Chrome

Enable Experimental Web Platform Features

Copy and paste this on your chrome URL/searchbar thingy:

chrome://flags/#enable-experimental-web-platform-features Then Enable the feature

Install Stylebot chrome extension

leocb

// line intercept math by Paul Bourke http://paulbourke.net/geometry/pointlineplane/
// Determine the intersection point of two line segments
// Return FALSE if the lines don't intersect
function intersect(x1, y1, x2, y2, x3, y3, x4, y4) {

  // Check if none of the lines are of length 0
	if ((x1 === x2 && y1 === y2) || (x3 === x4 && y3 === y4)) {
		return false
	}

leocb

BIN for most common credit cards in Brazil

⚠️ For anyone using this, please note that this file is from 2015 and may be out of date or may not include all current BINs

BINs (Bank Identification Number) are the first 6 digits of a credit card. these are being distributed around the world all the time, this gist tries to list all possible ranges for the most common brazilian credit cards. Please help me keep it updated 😄

note: All length fields refer to the max length

Sources

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// Como usar:
// Copie todo esse codigo
// abra o site do inmet: http://www.inmet.gov.br/sim/cond_reg/tempoCapitais.php
// aperte F12, vá na aba console, cole o codigo a aperte enter
// Defina as datas de inicio e fim nos campos que aparecem na tela
// Clique em 'buscar dados'
// Aguarde o fim do processo
// Clique no link gerado para fazer donwload do arquivo