How to Solve Equations using TI-89 TIT Calculator?

  • Context: High School 
  • Thread starter Thread starter 2Xist
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SUMMARY

The TI-89 TIT calculator's "solve" function requires precise syntax to avoid errors. Users reported a "memory error" when inputting equations incorrectly, specifically when using "X(2)" instead of the correct format "2*x". The latter successfully computes the equation, yielding the expected result of 10. Proper understanding of function notation and variable definitions is crucial for effective use of the TI-89 TIT.

PREREQUISITES
  • Understanding of the TI-89 TIT calculator interface
  • Familiarity with algebraic equations and variable manipulation
  • Knowledge of function notation in mathematical expressions
  • Experience with calculator troubleshooting techniques
NEXT STEPS
  • Research proper syntax for the TI-89 TIT "solve" function
  • Learn about variable definitions and function notation in mathematics
  • Explore advanced features of the TI-89 TIT calculator
  • Investigate common error messages and their resolutions on the TI-89 TIT
USEFUL FOR

Students, educators, and professionals who utilize the TI-89 TIT calculator for solving equations and require a deeper understanding of its functionalities.

2Xist
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Hi everybody,

i was using the " Solve( " function in TI-89 TIT (home) and i inserted the function (* THIS IS EXACTLY WHAT I TYPED IN *) :::::

solve(20=X(2),X)

i mean.. it should be 10 right?
but like it came up with the " memory error"

* I DID RESET MEMORY AND TRIED REINSTALLING OS <--lol
but none worked...

PLEASE TRY ON YOUR OWN CALCULATORS AND PLEASE HELP!

AGAIN PLEASE POST YOUR OWN RESULTS AFTER TRYING THE SAME EXACT EQUATION!
 
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the problem is with your input. Try:

solve(20 = 2*x,x) and it should work just fine.
 
lol it worked !
thank you so much! lol
so was it just my calculator or did it happen to yours too??
i don't know know why i can't put X(2) when the brackets means multiplication as well...
 
I received the error as well. When you enter x(2) the 89 thinks that you are treating x as a function of a variable when that variable is equal to the value 2, but you have not defined the function x. That is why you received the error. The TI-89 is a very smart calculator, so you have to be especially conscious of how you input.
 

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