1// The Computer Language Shootout
2// http://shootout.alioth.debian.org/
3// contributed by Isaac Gouy
4
5function partial(n){
6    var a1 = a2 = a3 = a4 = a5 = a6 = a7 = a8 = a9 = 0.0;
7    var twothirds = 2.0/3.0;
8    var alt = -1.0;
9    var k2 = k3 = sk = ck = 0.0;
10
11    for (var k = 1; k <= n; k++){
12        k2 = k*k;
13        k3 = k2*k;
14        sk = Math.sin(k);
15        ck = Math.cos(k);
16        alt = -alt;
17
18        a1 += Math.pow(twothirds,k-1);
19        a2 += Math.pow(k,-0.5);
20        a3 += 1.0/(k*(k+1.0));
21        a4 += 1.0/(k3 * sk*sk);
22        a5 += 1.0/(k3 * ck*ck);
23        a6 += 1.0/k;
24        a7 += 1.0/k2;
25        a8 += alt/k;
26        a9 += alt/(2*k -1);
27    }
28}
29
30for (var i = 1024; i <= 16384; i *= 2) {
31    partial(i);
32}
33
34