>Thanks Hilmar. Let me correct formula. The n is the power .
>
>In language the formula will written as
>
>[(1+i) whole to the power n]
A power can be written with ^ or with **:
(1 + 1) ^ n
(1 + 1) ** n
>
>similarly, for lower portion;
>
>
> (1+i) whole to the power -1/3
(1+i) ^ (-1/3)
The parentheses are necessary in this case, because potentiation has a higher priority.
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