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// The Computer Language Shootout
// http://shootout.alioth.debian.org/
// contributed by Isaac Gouy
function partial(n){
var a1 = a2 = a3 = a4 = a5 = a6 = a7 = a8 = a9 = 0.0;
var twothirds = 2.0/3.0;
var alt = -1.0;
var k2 = k3 = sk = ck = 0.0;
for (var k = 1; k <= n; k++){
k2 = k*k;
k3 = k2*k;
sk = Math.sin(k);
ck = Math.cos(k);
alt = -alt;
a1 += Math.pow(twothirds,k-1);
a2 += Math.pow(k,-0.5);
a3 += 1.0/(k*(k+1.0));
a4 += 1.0/(k3 * sk*sk);
a5 += 1.0/(k3 * ck*ck);
a6 += 1.0/k;
a7 += 1.0/k2;
a8 += alt/k;
a9 += alt/(2*k -1);
}
}
for (var i = 1024; i <= 16384; i *= 2) {
partial(i);
}
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