Re: Simple questions..

To: CALC-TI@LISTS.PPP.TI.COM
Subject: Re: Simple questions..
From: Ray Kremer <rkremer@BRADLEY.EDU>
Date: Fri, 13 Mar 1998 00:30:06 -0500
Reply-To: Ray Kremer <rkremer@BRADLEY.EDU>

Well, we've got the first part out of the way (I prefer the x-root
symbol too, but I've learned to live with the 92's idiosyncrisies), so on
to the other question:
Page 488 and 489 of the manual explains (very poorly) that the R cis Theta
form (polar notation) of complex numbers is rendered as R e^(i*Theta),
given that the Complex Format in mode is set to Polar.  This is so much
easier on the 85/86, but that's how the 92 does it.

>        Now what made me write this email... I'm studying Complex numbers
>in school and I've figured out how to find zeros, solve equations, that
>stuff that uses cSolve, cFactor and so on... But I still haven't figured
>out how to make calculations with complex number ih the "trigonometrical"
>(I don't know how do you call it) form. To help you guys: He have complex
>number like this: z=a+ib and the other way that can be
>z=|z|cos(x)+i.|z|sin(x). But this last form is equal to z=|z|cis(x). We
>use a lot this last form, so it would be great for me if there was a way
>of make calculations with complex numbers just like that... Something that
>does the same like "cis" operation.
>        I've look in the manual but couldn't find out nothing that could
>help me...