Question about Texas Instruments TI-84 Plus Calculator

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How to get rid of the triangle and vertical bar sign befor the Y1= in the y= button.

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Hello,
I suspect (no, I am sure that) you ran the dynamical graphing application called "Transfrorm" and since you did not terminate it, it is still in the memory of the calculator, having taken over certain functionalities of the Operating System.

Press [APPS], and scroll UP to reach the bottom of the list of applications more quickly. Locate the "Transfrorm" application, point to it and press [ENTER].
In the display you are prompted

  1. To Uninstall .or
  2. To continue
Press [1:Uninstall]. And do not worry this will only kick it out of memory, it will not delete it.

Now you recover the usual Y= function editor.

Hope it helps.
Thank you for rating the solution.

Posted on Dec 12, 2009

Testimonial: "Thank you you are a God send! I needed that fixed for my upcoming Linear Algebra Test & Finals. You did it. Yeah. God Bless and Happy Holidays."

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Damn dude i had the same problem, after a while searching for something that can put this problem away i've finnaly found the way \o/! Try APPS->TRANSFRM-> UNNINSTALL! Hope u can make it!

cheers

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