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// The Computer Language Shootout↩
// 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);↩
}↩
↩