Re: Imaginary Numbers on the 89


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Re: Imaginary Numbers on the 89



You must use cFactor in order to factoring with the imaginary numbers.

Patrick McGinn a icrit :

> Hi.  Before you start, no, I don't need to know how to get the 89 to give me
> 3i when I input sqrt(-9).  I figured that out by messing with the mode.
>
> What I'm wondering is, is it possible for the 89 to show imaginary numbers
> when factoring?  For instance, factoring (49x^2 + 9) should give me (7x +
> 3i)(7x - 3i).  Yet, when I do it on the calc, it gives me what I entered
> (49x^2 + 9).
>
> Thanks.
>
> Xaos
> 80 97 116 114 105 99 107 32 77 99 71 105 110 110
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