Scales the fibonacci sequence

fib_scale.js

#!/usr/bin/env node

(function() {
	
	var rnd = function(x) { return Math.round(x*10)/10; };
	var tbl = function(a) {
		var b=[]; 
		for(var i=0,l=a.length;i<l;i++) {
			var n=a[i].toString(); 
			for(var j=0, s=" "; j<(5-n.length);j++) { 
				s+=" ";
			}
			b[i]=s+n;
		}
		return b.join('|');
	}
	var scaleWidth = 50;
	var width = 295; //width of the canvas,in cm)	
	var depth = 15; 
	var targ  = 232; //10th fibonacci digit
	var scale = (width/targ)*(scaleWidth/width); //50cm is scale width;
	
   var fibs = [1,1];
   var tran = [rnd(scale),rnd(scale)];
   var fsum = [1,2];
   var tsum = [rnd(scale),rnd(scale*2)];
   for(var i=2;i<depth;i++) {
    	fibs[i] = fibs[i-1]+fibs[i-2];
    	fsum[i] = fibs[i] + fsum[i-1];
   }
   for(var i=2;i<depth;i++) {
   	tran[i] = rnd(fibs[i] *scale);
   	tsum[i] = rnd(tran[i] + tsum[i-1]);
   }

	console.log(tbl(fibs));
   console.log(tbl(fsum));
	console.log(tbl(tran));
   console.log(tbl(tsum));

	return;   
})();