|
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
|