1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/js/src/devtools/jint/sunspider/math-partial-sums.js Wed Dec 31 06:09:35 2014 +0100
1.3 @@ -0,0 +1,37 @@
1.4 +// The Computer Language Shootout
1.5 +// http://shootout.alioth.debian.org/
1.6 +// contributed by Isaac Gouy
1.7 +
1.8 +function partial(n){
1.9 + var a1 = a2 = a3 = a4 = a5 = a6 = a7 = a8 = a9 = 0.0;
1.10 + var twothirds = 2.0/3.0;
1.11 + var alt = -1.0;
1.12 + var k2 = k3 = sk = ck = 0.0;
1.13 +
1.14 + /* BEGIN LOOP */
1.15 + for (var k = 1; k <= n; k++){
1.16 + k2 = k*k;
1.17 + k3 = k2*k;
1.18 + sk = Math.sin(k);
1.19 + ck = Math.cos(k);
1.20 + alt = -alt;
1.21 +
1.22 + a1 += Math.pow(twothirds,k-1);
1.23 + a2 += Math.pow(k,-0.5);
1.24 + a3 += 1.0/(k*(k+1.0));
1.25 + a4 += 1.0/(k3 * sk*sk);
1.26 + a5 += 1.0/(k3 * ck*ck);
1.27 + a6 += 1.0/k;
1.28 + a7 += 1.0/k2;
1.29 + a8 += alt/k;
1.30 + a9 += alt/(2*k -1);
1.31 + }
1.32 + /* END LOOP */
1.33 +}
1.34 +
1.35 + /* BEGIN LOOP */
1.36 +for (var i = 1024; i <= 16384; i *= 2) {
1.37 + partial(i);
1.38 +}
1.39 + /* END LOOP */
1.40 +
