TI-89 Titanium Help: Decimal Conversion & Tutorials

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    Ti-89 Titanium
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SUMMARY

The TI-89 Titanium calculator can display decimal representations by adjusting the "Exact/Approx" mode settings. Users can switch between "auto," "exact," and "approximate" modes to control how results are displayed. For decimal to fraction conversions, the "exact()" function is effective, and adding a decimal point to the numerator can yield decimal results in "auto" mode. For additional resources, ticalc.org offers user-made programs and tutorials that enhance the calculator's functionality.

PREREQUISITES
  • Understanding of TI-89 Titanium calculator functions
  • Familiarity with mathematical operations such as fractions and decimals
  • Knowledge of polynomial division techniques
  • Basic navigation of calculator menus and settings
NEXT STEPS
  • Research how to use the "exact()" function for decimal to fraction conversions
  • Explore the TI Connect software for connecting the TI-89 Titanium to a computer
  • Learn about symbolic polynomial division on the TI-89 Titanium
  • Investigate user-made programs available on ticalc.org for enhanced calculator functionality
USEFUL FOR

Students in calculus and engineering, educators teaching mathematics, and anyone seeking to maximize their use of the TI-89 Titanium calculator.

  • #31
Mark44 said:
My guess is that the calculator doesn't like 8x, and that the expression on the right should be 8*x*cos(x).

8x*cos(x) graphs fine for me on my 89.
 
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  • #32
i am having trouble factoring :(
when i try to factor 4x^3+12x^2-8x i end up getting 4x(x-.561..)(x+3.561..)
i don't know if i have the settings wrong or something
PLEASE HELP
 
  • #33
awesome123333 said:
i am having trouble factoring :(
when i try to factor 4x^3+12x^2-8x i end up getting 4x(x-.561..)(x+3.561..)
i don't know if i have the settings wrong or something
PLEASE HELP

get it off decimal mode. I don't have one, so I don't know exactly how, but that is what you need to do. My calculator (a casio classpad) refers to non-decimal mode as "standard" mode.
 
  • #34
I need help with my Ti 89. When I factor or solve from the F1 algebra menu it gives me answers in matrix format. I have tried clearing memory and reformatting... Please help!
 
  • #35
swimgirl said:
I need help with my Ti 89. When I factor or solve from the F1 algebra menu it gives me answers in matrix format. I have tried clearing memory and reformatting... Please help!
What you need to do, is push the mode button, press f2 to go to the second page, scroll down to "Exact/Approx". You need to change this to Exact, or Auto. This should solve your problem.
 

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