Summary: Use Windows PowerShell to display number grouping and control the number of displayed decimal places.

 How can I use Windows PowerShell to group digits and control the number of decimal places in a large number?

 Use the Numeric Format Specifier, and specify the number of required decimal places. Here are a few examples:

PS C:\> (1000*1000).tostring("N")

1,000,000.00

PS C:\> (1000*1000).tostring("N1")

1,000,000.0

PS C:\> (1000*1000).tostring("N3")

1,000,000.000