Re: i to the ith power

To: CALC-TI@LISTS.PPP.TI.COM
Subject: Re: i to the ith power
From: Dale McCoy <DaleStan@AOL.COM>
Date: Tue, 21 Mar 2000 16:14:56 EST
Reply-To: DaleStan@AOL.COM

> Why when I take (a)  sqroot(-1) ^sqroot(-1) or (b) i ^ sqroot(-1) or (c)
>  sqroot(-1)^i  the ti-83 gives an undefined response (specifically an error
>  message) but when I try i^i  it gives back .2078795764

It doesn't give undefined, it gives nonreal answer.  Set the mode to a+bi or
re^i[theta] to fix this problem.  The 83 evaluates sqroot(-1), gets i, sees
this is not real, and quits.  If all nonreals are entered, however, the 83
won't complain, even if you enter (2i)^3 or something.  To set the mode to
one of the complex modes, press mode, go down to the second line from the
bottom and press enter with the selector over either of those two modes.

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