Powershell array assignment assigns variable, not value?

Question

I have an example of a program that creates an array, and then attempts to assign the value of that array multiple times into another array as a multidimensional array.

Answer 1

To assign the values of $a to $b instead of the reference to $a, you can wrap the variable in $(). Anything in $() gets evaluated before using it in the command, so $($a) is equivalent to 0, 0, 0.

$a =@(0,0,0)
$b = @($($a),$($a),$($a))
$b[1][2]=2
$b
'$a is not changed.'
$a