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comparison: js/src/devtools/jint/sunspider/math-partial-sums.js
js/src/devtools/jint/sunspider/math-partial-sums.js
- branch
- TOR_BUG_9701
- changeset 15
- b8a032363ba2
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| -1:000000000000 | 0:723bdd318426 |
|---|---|
| 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 /* BEGIN LOOP */ | |
| 12 for (var k = 1; k <= n; k++){ | |
| 13 k2 = k*k; | |
| 14 k3 = k2*k; | |
| 15 sk = Math.sin(k); | |
| 16 ck = Math.cos(k); | |
| 17 alt = -alt; | |
| 18 | |
| 19 a1 += Math.pow(twothirds,k-1); | |
| 20 a2 += Math.pow(k,-0.5); | |
| 21 a3 += 1.0/(k*(k+1.0)); | |
| 22 a4 += 1.0/(k3 * sk*sk); | |
| 23 a5 += 1.0/(k3 * ck*ck); | |
| 24 a6 += 1.0/k; | |
| 25 a7 += 1.0/k2; | |
| 26 a8 += alt/k; | |
| 27 a9 += alt/(2*k -1); | |
| 28 } | |
| 29 /* END LOOP */ | |
| 30 } | |
| 31 | |
| 32 /* BEGIN LOOP */ | |
| 33 for (var i = 1024; i <= 16384; i *= 2) { | |
| 34 partial(i); | |
| 35 } | |
| 36 /* END LOOP */ | |
| 37 |
