Calculators TI-89 Exact/Approx Answers: How to Get Approximate Results with "AUTO" Mode

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SUMMARY

To obtain approximate results on the TI-89 calculator while in "AUTO" mode for Exact/Approx settings, users can press the Diamond button before hitting ENTER. Additionally, entering a decimal in one of the numbers, such as using 4. / 3., will yield an approximate answer. For converting an exact number to a decimal, multiplying by 1 can also be utilized. These methods provide efficient alternatives to manually switching modes.

PREREQUISITES
  • Familiarity with TI-89 calculator functions
  • Understanding of Exact/Approx settings
  • Basic arithmetic operations
  • Knowledge of using the Diamond button
NEXT STEPS
  • Explore advanced features of the TI-89 calculator
  • Learn about other modes in TI-89 for different calculations
  • Investigate how to customize settings for optimal performance
  • Practice using the Diamond button with various calculations
USEFUL FOR

Students, educators, and professionals who utilize the TI-89 calculator for mathematical computations and require efficient methods for obtaining approximate results.

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With the Exact/Approx set to "AUTO" in the mode menu, how can I get approximate answers without going and switching it to approx then recalculating?
 
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Before you press ENTER to solve, press the Diamond button.
 
Woot! Thanks!
 
cscott said:
With the Exact/Approx set to "AUTO" in the mode menu, how can I get approximate answers without going and switching it to approx then recalculating?

Put a decimal in one of the numbers, i.e., instead of entering 4 / 3, enter 4. / 3. If you forget, or if you an exact number answer that you want converted to a decimal, just x (times) 1.

Try both to see how they work!

Regards,
George
 
George Jones said:
Put a decimal in one of the numbers, i.e., instead of entering 4 / 3, enter 4. / 3. If you forget, or if you an exact number answer that you want converted to a decimal, just x (times) 1.

Try both to see how they work!

Regards,
George

Cool. Thanks for the alternatives.
 

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