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| |
| <title>SunSpider math-partial-sums</title> |
| <link rel="stylesheet" href="sunspider.css"> |
| </head> |
| |
| <body> |
| <h3>math-partial-sums</h3> |
| <div id="console"> |
| </div> |
| <script src="sunspider-record-result.js"></script> |
| <script> |
| |
| var _sunSpiderStartDate = new Date(); |
| |
| // 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); |
| } |
| |
| |
| |
| var _sunSpiderInterval = new Date() - _sunSpiderStartDate; |
| |
| record(_sunSpiderInterval); |
| </script> |
| |
| |
| </body> |
| </html> |
