Initial data commit

Task/Fibonacci-sequence/PowerShell/fibonacci-sequence-1.psh

@@ -0,0 +1,9 @@
+function FibonacciNumber ( $count )
+{
+    $answer = @(0,1)
+    while ($answer.Length -le $count)
+    {
+        $answer += $answer[-1] + $answer[-2]
+    }
+    return $answer
+}

Task/Fibonacci-sequence/PowerShell/fibonacci-sequence-2.psh

@@ -0,0 +1,4 @@
+$count = 8
+$answer = @(0,1)
+0..($count - $answer.Length) | Foreach { $answer += $answer[-1] + $answer[-2] }
+$answer

Task/Fibonacci-sequence/PowerShell/fibonacci-sequence-3.psh

@@ -0,0 +1,8 @@
+function fib($n) {
+    switch ($n) {
+        0            { return 0 }
+        1            { return 1 }
+        { $_ -lt 0 } { return [Math]::Pow(-1, -$n + 1) * (fib (-$n)) }
+        default      { return (fib ($n - 1)) + (fib ($n - 2)) }
+    }
+}