TI-83 - complex numbers bug?

To: CALC-TI@LISTS.PPP.TI.COM
Subject: TI-83 - complex numbers bug?
From: Stuart Dawson <sd@DAWSON-ENG.DEMON.CO.UK>
Date: Fri, 26 Sep 1997 07:54:23 +0100
Distribution: world
Organization: Dawson Engineering
Reply-To: Stuart Dawson <sd@DAWSON-ENG.DEMON.CO.UK>
Xref: paladin.american.edu bit.listserv.calc-ti:17122

When I input a complex number, my TI-83 treats the angle argument as
being in radians, even if the mode is set to Degree. Example:

        Entering 20e^(i30) should give 17.321 + 10.000i. I get 3.085 -
19.761i, which would be right for Radians mode.
        20e^(i30pi/180) gives 17.321 + 10.000i - you have to convert the
angle to degrees for the right answer.

        No problem with the same operation on the TI-85.

        This looks like a bug to me. I'm writing survey software. If
it's a bug, and TI fix it in a future ROM version, then I'll have to
rewrite for a specific ROM version, which shouldn't be happening in TI-
Basic.

        Anybody?
--
|>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
Stuart Dawson            Dawson Engineering
sd@dawson-eng.demon.co.uk
Belfast, Northern Ireland   +44 1232 640669
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Re: TI-83 - complex numbers bug?

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