Added try catch for psd1 loading so it can be copy pasted to the console

Examples/Charts/plot.ps1

@@ -1,3 +1,5 @@
+try {. $PSScriptRoot\..\..\LoadPSD1.ps1} catch {}
+
 function plot {
     param(
         $f,
@@ -7,18 +9,18 @@ function plot {
 
     $minx=[math]::Round($minx,1)
     $maxx=[math]::Round($maxx,1)
-    
-    $file = 'C:\temp\plot.xlsx'    
-    rm $file -ErrorAction Ignore
+
+    $file = 'C:\temp\plot.xlsx'
+    Remove-Item $file -ErrorAction Ignore
 
     $c = New-ExcelChart -XRange X -YRange Y -ChartType Line -NoLegend -Title Plot -Column 2 -ColumnOffSetPixels 35
-    
+
     $(for ($i = $minx; $i -lt $maxx-.1; $i+=.1) {
         [pscustomobject]@{
             X=$i.ToString("N1")
             Y=(&$f $i)
         }
-    }) | Export-Excel $file -Show -AutoNameRange -ExcelChartDefinition $c 
+    }) | Export-Excel $file -Show -AutoNameRange -ExcelChartDefinition $c
 }
 
 function pi {[math]::pi}