Data update

2026-04-30 12:34:36 -04:00 · 2026-04-30 12:34:36 -04:00 · cbaf4c4b64
commit cbaf4c4b64
parent 4bb20c9b71
12390 changed files with 318560 additions and 27248 deletions
--- a/Task/Cumulative-standard-deviation/PowerShell/cumulative-standard-deviation.ps1
+++ b/Task/Cumulative-standard-deviation/PowerShell/cumulative-standard-deviation.ps1
@ -0,0 +1,13 @@
+function Get-StandardDeviation {
+    begin {
+        $avg = 0
+        $nums = @()
+    }
+    process {
+        $nums += $_
+        $avg = ($nums | Measure-Object -Average).Average
+        $sum = 0;
+        $nums | ForEach-Object { $sum += ($avg - $_) * ($avg - $_) }
+        [Math]::Sqrt($sum / $nums.Length)
+    }
+}