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Ingy döt Net 2026-04-30 12:34:36 -04:00
parent 4bb20c9b71
commit cbaf4c4b64
12390 changed files with 318560 additions and 27248 deletions
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35
Task/Percolation-Mean-run-density/JavaScript/percolation-mean-run-density.js Normal file
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function runTest(probability, length, runCount) {
let count = 0.0;
for (let run = 0; run < runCount; run++) {
let previousBit = 0;
let currentLength = length;
while (currentLength-- > 0) {
const nextBit = (Math.random() < probability) ? 1 : 0;
if (previousBit < nextBit) {
count += 1.0;
}
previousBit = nextBit;
}
}
return count / runCount / length;
}
function main() {
console.log("Running 1000 tests each:\n");
console.log(" p\tlength\tresult\ttheory\t difference");
for (let probability = 0.1; probability <= 0.9; probability += 0.2) {
const theory = probability * (1.0 - probability);
let length = 100;
while (length <= 100000) {
const result = runTest(probability, length, 1000);
const difference = result - theory;
const percentDifference = (difference / theory) * 100;
console.log(`${probability.toFixed(1)}\t${length.toString().padStart(6)}\t${result.toFixed(4)}\t${theory.toFixed(4)}\t${difference >= 0 ? '+' : ''}${difference.toFixed(4)} (${percentDifference >= 0 ? '+' : ''}${percentDifference.toFixed(2)}%)`);
length *= 10;
}
console.log();
}
}
main();