Question about a key in the ti-89

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    Ti-89
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Discussion Overview

The discussion revolves around the function and meaning of the diamond + stor -> key on the TI-89 calculator, specifically focusing on the symbol associated with it and its implications in computations.

Discussion Character

  • Technical explanation, Conceptual clarification, Debate/contested

Main Points Raised

  • One participant expresses confusion about the meaning of the diamond + stor -> key and the associated symbol.
  • Another participant questions whether the original poster has consulted the manual or the company's website for assistance.
  • A different participant shares information about the @ symbol, noting its use in computations as representing an arbitrary integer, and references the TI-89 manual for clarification on its behavior and numbering system.

Areas of Agreement / Disagreement

The discussion reflects a lack of consensus on the specific meaning of the diamond + stor -> key, with some participants suggesting resources while others provide insights into related symbols.

Contextual Notes

There is an assumption that the manual contains relevant information, but the original poster's familiarity with it is unclear. The discussion does not resolve the original question about the diamond + stor -> key.

kevinf
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i am having trouble finding out what the diamond + stor -> key do. i don't know what that symbol means
 
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anybody know what this key means?
 
Don't you have a manual for it? :confused:
If not, maybe try out the company's website help section. Personally, I've never even seen one of those devices.
 
I've seen the @ symbol a few times when I do certain computations. @ indicates an arbitrary integer and the TI89 manual has also given @ the name arbitrary. Here is what the TI89 manual (pg. 80; Symbolic Manipulation) had to say:
When an arbitrary
integer occurs multiple
times in the same
session, each
occurrence is numbered
consecutively. After it
reaches 255, arbitrary
integer consecutive
numbering restarts at
@n0. Use Clean Up
2:NewProb to reset to
@n1.
ˆ
 

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