1 // The Computer Language Shootout 2 // http://shootout.alioth.debian.org/ 3 // contributed by Isaac Gouy 4 5 function 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 30 for (var i = 1024; i <= 16384; i *= 2) { 31 partial(i); 32 } 33 34
