September Morn Update

Task/Cholesky-decomposition/PowerShell/cholesky-decomposition.psh

@@ -3,8 +3,7 @@ function cholesky ($a) {
     if ($a) {
         $n = $a.count
         $end = $n - 1
-        $l = @(0) * $n
-        foreach ($i  in 0..$end) {$l[$i] = @(0) * $n}
+        $l = 1..$n | foreach {$row = @(0) * $n; ,$row}
         foreach ($k in 0..$end) {
             $m = $k - 1
             $sum = 0
@@ -26,11 +25,7 @@ function cholesky ($a) {
     $l
 }
 
-function show($a) {
-    if($a) {
-        0..($a.Count - 1) | foreach{ if($a[$_]){"$($a[$_])"}else{""} }
-    }
-}
+function show($a) {$a | foreach {"$_"}}
 
 $a1 = @(
 @(25, 15, -5),