Solve Simple Equations with TI-89 TIT: A Troubleshooting Guide

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SUMMARY

The forum discussion addresses a troubleshooting issue with the "Solve()" function on the TI-89 TIT calculator. A user encountered a "memory error" when attempting to solve the equation "solve(20=X(2),X)". It was clarified that "X(2)" is interpreted as a user-defined function rather than multiplication. The correct syntax for solving the equation is "solve(20=x*2,x)" or "solve(20=2x,x)", which successfully yields the expected result of 10.

PREREQUISITES
  • Understanding of TI-89 TIT calculator functions
  • Familiarity with syntax for equations in TI-89
  • Basic algebraic manipulation skills
  • Knowledge of user-defined functions in TI-89
NEXT STEPS
  • Research the TI-89 TIT calculator's function syntax
  • Learn how to define and use user-defined functions on TI-89
  • Explore troubleshooting common errors on TI-89 calculators
  • Practice solving equations using the "Solve()" function on TI-89
USEFUL FOR

Students, educators, and anyone using the TI-89 TIT calculator for solving equations or troubleshooting calculator functions.

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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Hi 2Xist,

In the syntax of the TI-89, X(2) does not stand for multiplication of X and 2. That is the syntax for calling a user defined function X with a value of 2.

Instead try these

solve(20=x*2,x)

or

solve(20=2x,x)
 

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