Calc.exe => What is digit grouping?

[JEDI]

I never noticed this before.

Under view, there's an option for digit grouping.

the HELP function was unhelpful:
"Digit grouping:
You can use Calculator to perform any of the standard operations for which you would normally use a handheld calculator. Calculator performs basic arithmetic, such as addition and subtraction, as well as functions found on a scientific calculator, such as logarithms and factorials."

What does digit grouping do?

 

[gfngfgf]

I'm pretty sure it just adds a comma between every three digits.

edit: from the calc.exe help file:

"* You can use digit grouping to view numbers as logically grouped.
* Calculator uses commas to group decimal numbers, and spaces to group hexadecimal numbers."