[libreoffice-l10n] IMPOWER function?

https://translations.documentfoundation.org/hr/libo_ui/scaddins/source/translate.html#unit=29745986

Why is "integer" power mentioned in english string?
As I understand and by looking at support article on Microsoft Excel 
help pages, you can use any power number, for example integer(eg. 3), 
decimal (eg. 0,5 or 1/2 fraction) or negative (eg. -3).
http://office.microsoft.com/en-us/excel-help/impower-function-HA102752983.aspx?CTT=5&origin=HA102752955

Does integer here stands for "whole number" without decimals or 
something else?

Also, result of this formuladoesn't follow default decimal separator for 
language in use.
For example, if you apply this formula:
=IMPOWER("2+3i";1/2)

Result is:
1.67414922803554+0.895977476129838i

When for croatian locale it should be:
1,67414922803554+0,895977476129838i

Best regards,
Mihovil

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