A trailing decimal point with nothing to the right customarily says that trailing zeros of an integer are significant figures,

1230 Three significant figures
1230. Four significant figures

There is nothing odd or unexpected about using that notation even where it is not needed.

After Compline,
Zaxo

In reply to Re: This checks there is at least one digit, among other things... by Zaxo
in thread Replacing numbers using regular expression by agynr

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