How Can I Change Integration Form on Ti-89?

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  • Thread starter Thread starter Machinus
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    Integration Ti-89
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SUMMARY

The Ti-89 calculator is returning the integral of 1/(sinx) as "ln[(sinx)/(cosx-1)]" instead of the expected "ln[tan(x/2)]." Users have confirmed that other Ti-89 calculators provide the correct form, indicating a potential issue with settings or software. It is essential to ensure the calculator is set to complex format in rectangular mode and that the angle is in radians. If problems persist, upgrading to the latest OS version 2.09 is recommended.

PREREQUISITES
  • Familiarity with Ti-89 calculator settings
  • Understanding of integral calculus
  • Knowledge of complex number formats
  • Experience with software version updates
NEXT STEPS
  • Check and adjust the complex format settings on the Ti-89
  • Verify that the angle mode is set to radians
  • Research the differences in integral forms for trigonometric functions
  • Learn how to upgrade the Ti-89 OS to version 2.09
USEFUL FOR

Students and educators in mathematics, particularly those using the Ti-89 calculator for calculus, as well as anyone troubleshooting calculator settings for accurate integral results.

Machinus
I am having some problems with my Ti-89.

I am familiar with all the settings under "Mode."

However, when integrating the function 1/(sinx) the calculator returns the form "ln[(sinx)/(cosx-1)]" and NOT the form "ln[tan(x/2)]." I am completely unable to get the calculator to return the other form of the integral. I have even used other Ti-89s and they return the second form and I cannot see any difference in the settings. Can anyone help?
 
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Are you sure your calculator has a complex format of rectangular? Also the angle should be in radians. If that doesn't work I suggest upgrading the OS on the calc. The lastest version is 2.09. You can check which version you have by going to Tools->About
 

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