Another update from ingydotnet^djgoku

Task/Compile-time-calculation/PowerShell/compile-time-calculation.psh

@@ -0,0 +1,14 @@
+function fact([BigInt]$n){
+    if($n -ge ([BigInt]::Zero)) {
+        $fact = [BigInt]::One
+        ([BigInt]::One)..$n | foreach{
+            $fact = [BigInt]::Multiply($fact, $_)
+        }
+        $fact
+
+    } else {
+        Write-Error "$n is lower than 0"
+    }
+}
+"$((Measure-Command {$fact = fact 10}).TotalSeconds) Seconds"
+$fact