Re: Variable Exist Test

To: CALC-TI@LISTS.PPP.TI.COM
Subject: Re: Variable Exist Test
From: Jeff Tyrrill <Jeff_Tyrrill@CLASSIC.MSN.COM>
Date: Tue, 2 Sep 1997 04:21:19 UT
Reply-To: Jeff Tyrrill <Jeff_Tyrrill@CLASSIC.MSN.COM>

There is no way to test for a variable from within a program. I think, though,
that real variables (maybe some other types also) are automatically defined as
zero when they are referenced, if they did not previously exist.
________________

Jeff Tyrrill
http://tyrrill-ticalc.home.ml.org/
http://ti-files.home.ml.org/


-----Original Message-----
From:   Open discussion of TI Graphing Calculators  On Behalf Of Ted Behling
Sent:   Saturday, August 30, 1997 11:11 AM
To:     CALC-TI@LISTS.PPP.TI.COM
Subject:        Variable Exist Test

How do I test to see if a variable exists, on a TI-83?  TIA.

Ted Behling - webmeister@cyber-wizard.com - Hilton Head Island, SC
Monarch Information Systems, Computer Consultant
QBasic & Windows 97 mailing lists - Moderator (See the websites to join)
Win97: http://rdz.stjohns.edu/win97 | QBasic: http://rdz.stjohns.edu/qbasic

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