Argument Error

Are you getting an “argument error” on a Ti-89 Titanium? Well, please try executing the “Clear A-Z” command under the “Clean Up” menu (F6) as this will correct the issue.

Note: You can find special characters like “?” under the “CHAR” menu, which is [2nd]+[PLUS] on the TI-89T.
The third submenu, “Punctuation”, has a question mark as the 8th entry.

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Stephan Pringle

Technology Support Specialist at Sipylus
About The Author: Stephan Pringle is an Information Technology Support Specialist. He covers hardware and software and provides tips for you to troubleshoot and repair issues on your own. In his spare time, he writes articles about the State of New York on his Hackintosh and HackBook and that has helped him to become the top contributor of the New York City section of Yahoo! Answers.
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Stephan Pringle

About The Author: Stephan Pringle is an Information Technology Support Specialist. He covers hardware and software and provides tips for you to troubleshoot and repair issues on your own. In his spare time, he writes articles about the State of New York on his Hackintosh and HackBook and that has helped him to become the top contributor of the New York City section of Yahoo! Answers.