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  1. // Monte Carlo Method
  2.  
  3. const maxn = 1000000;
  4. let count = 0;
  5.  
  6. for (let i = 0; i < maxn; i++) {
  7. 	let x = Math.random() * 2 - 1;  // full circle
  8. 	let y = Math.random() * 2 - 1;
  9. 	if (x * x + y * y <= 1) {
  10. 		count = count + 1;
  11. 	}
  12. }
  13.  
  14. const mypi = count * 4 / maxn;
  15. let devi = 100 * Math.abs(Math.PI - mypi) / Math.PI;
  16. console.log(`Estimate: ${mypi.toFixed(4)}, Deviation: ${devi.toFixed(2)}%`);
Success #stdin #stdout 0.07s 17260KB
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Estimate: 3.1415, Deviation: 0.00%
https://ideone.com/rlJ9UG
使用蒙地卡羅方法估算π值
language:
JavaScript (SMonkey 60.2.3)
created:
7 days ago
visibility:
public

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