SYMBOL - 3X1 DECIMALS - 18 Virtual Reality Explore a random virtual world built on 3x+1! Try Something Whoosh! //add SVG canvas to page let svg = d3.select("#basicGraph") .append("svg") .attr("width", "100%") .attr("height", "320px"); var width = parseInt(svg.style("width")); //console.log(width); var height = parseInt(svg.style("height")); //console.log(height); //adding tooltip var tooltip = d3.select("#basicGraph").append("div") .attr("class", "dataTooltip"); //create x axis mapping var xScale = d3.scale
The starting values having the smallest total stopping time with respect to their number of digits (in base 2) are the powers of two since 2 n is halved n times to reach 1, and is never increased. [2]
As of 2020, the conjecture has been checked by computer for all starting values up to 2 68 ≈ 2.95×10 20 . All initial values tested so far eventually end in the repeating cycle (4; 2; 1)] of period 3. [1]