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Title	mandelbrot attempt
ID	6581959537508352
Created	2 years ago, 1658586179541
Updated	1 years ago, 1697309266450
Code	/** * * The mandelbrot set is given by all complex * values c such that the sequence * z_{0} = 0 * z_{n + 1} = z_{n}^2 + c * * is bounded. We can assume that if any term * in a given sequence has a modulus more than * or equal to 2, then it is not bounded. * * We can draw each complex number a + bi by * graphing it at (x, y) = (a, b). We then color * the point by the number of attempts required * to confirm that the sequence is not bounded. * If the sequence is bounded, we assume the * number of attempts is the maximum. * * Here, all bounded sequences appear black. * You may increase or decrease the accuracy * of the mandelbrot set by changing MAX_ITER. * Higher values trade off speed for accuracy. * Lower values trade off accuracy for speed. * / var MAX_ITER = 64; / Credit to @dkareh :: Disables loop protector */ (function () { return this; })(). LoopProtector.prototype.leave = function () {}; // Where the math happens // Thanks to @xacer for help with delag function mandelbrot (a, b) { // a, b represents z // a2, b2 represents c var n = 0; var a2 = a, b2 = b; while (a a + b * b < 4 && n < 50) { var new_a = a * a - b * b + a2; var new_b = 2 * a * b + b2; a = new_a; b = new_b; n ++; } return n; } // Loads data loadPixels(); var data = imageData.data, l = data.length; for(var i = 0; i < l; i += 4){ // Calculates mandelbrot value var n = i / 800; var m = mandelbrot(-2 + n % 3, -1.5 + n / 600); // Updates pixel value var n = 255 - m / MAX_ITER * 255; data[i ] = n; data[i + 1] = n; data[i + 2] = n; } // Updates all pixels updatePixels();
Folds
Fork	false
Key	ag5zfmtoYW4tYWNhZGVteXIXCxIKU2NyYXRjaHBhZBiAgKOBnsjYCww
Votes	22
Spin-Offs	1
Type	PJS
Width	600
Height	600
User Flagged	false
Origin Scratchpad	null
Hidden From Hotlist	false
Restricted Posting	false
By Child	false
Author Nick	Ibraheem Ahmed (IA)
Author Name	IbraheemIA
Author ID	kaid_42165633374795610935956
Author Profile Access	COACH

Archive Data

Added	23 days ago, 1734464209451
Updated	23 days ago, 1734464251308
Source Deleted	unknown