Task

Write a program to find the sum of squares of a numeric vector.

The program should work on a zero-length vector (with an answer of   0).



Related task

   Mean


function Get-SquareSum ($a) {
    if ($a.Length -eq 0) {
        return 0
    } else {
        $x = $a `
             | ForEach-Object { $_ * $_ } `
             | Measure-Object -Sum
        return $x.Sum
    }
}