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Run results for:
math standard deviation
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Embed Benchmark Result
Run details:
User agent:
Mozilla/5.0 (X11; Linux x86_64; rv:136.0) Gecko/20100101 Firefox/136.0
Browser:
Firefox 136
Operating system:
Linux
Device Platform:
Desktop
Date tested:
one year ago
Test name
Executions per second
std1 - mathjs
549545.5 Ops/sec
std2
11282543.0 Ops/sec
HTML Preparation code:
<script src='https://cdnjs.cloudflare.com/ajax/libs/mathjs/7.5.1/math.js'></script>
Script Preparation code:
function std1(arr) { return math.std(arr) } function std2(arr) { if(arr.length === 1) return 0; let sum = 0, varianceSum = 0; for(let i=0; i<arr.length; i++) { sum += arr[i]; } const mean = sum / arr.length; for(let i=0; i<arr.length; i++) { let x = arr[i] - mean; varianceSum += x*x; } const sampleVariance = varianceSum / (arr.length - 1); return Math.sqrt(sampleVariance); }
Tests:
std1 - mathjs
std1([1,2,3,4])
std2
std2([1,2,3,4])