$s="Juku"
 write-host $s
 function proov($sisend1, $sisend2){
   $sisend1*$sisend2
 }

 proov 5 10

 function paev($x=(Get-Date).Date){
    (Get-Date $x).DayOfYear
 }

 paev

 Get-Date
 (Get-Date).DayOfWeek


  
function arvutamine([int] $x=2, [int] $y=8){
  $x*$y
}

arvutamine

arvutamine 3 5
arvutamine 4.4 5.5

function arvutamine2{
  param($x=5, $y=6)
  $x*$y
}

arvutamine2
arvutamine2 3 4
arvutamine2 -y 3 -x 4

$jada=1, 2, 3, 4, 5, 6
$jada

$jada  | ForEach{Write-Host $_}

ForEach($v in $jada){Write-Host $v}

function ruut($parameeter){
  [math]::pow($parameeter, 2)
}

$jada | ForEach{Write-Host(ruut($_))}

For($i=0; $i -lt 5; $i++){
  Write-Host $i
}

$i=0
While($i -le 5){
 Write-Host $i
 $i++
}

$i=0
Do{
  write-host $i
  $i++
}While($i -lt 5)

$i=0
Do{
  Write-Host $i
  $i++
}Until($i -gt 5)