Complex Numbers on the TI-89 Titanium Claculator, help?

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SUMMARY

The discussion focuses on performing operations with complex numbers using the TI-89 Titanium calculator. Users seek guidance on converting complex expressions into standard form and performing multiplication. A key recommendation is to learn the manual calculations before relying on the calculator. The TI-89 utilizes the 2nd Catalog function to access the imaginary unit 'i', which is essential for these operations. A blog post is referenced for detailed instructions on manipulating complex numbers.

PREREQUISITES
  • Understanding of complex numbers and their standard form
  • Familiarity with the TI-89 Titanium calculator interface
  • Basic algebra skills, specifically in manipulating expressions
  • Knowledge of the imaginary unit 'i' and its properties
NEXT STEPS
  • Learn how to manually add and multiply complex numbers
  • Explore the TI-89 Titanium calculator's 2nd Catalog function
  • Read the blog post on manipulating complex numbers for practical examples
  • Practice solving complex number problems in Algebra 2
USEFUL FOR

Students in Algebra 2, educators teaching complex numbers, and anyone seeking to enhance their skills with the TI-89 Titanium calculator.

Kawaisou
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Hello all,

My first post here and sorry it is not very scholarly. lol

I am currently taking Algebra 2 and am completely lost as how to find the answers to simple equations and expressions such as the ones below. Can anybody help me out or if you own a TI-89 Calc and know how to perform these operations, please let me know! I will need to do it by hand but if I can do it on the Calc I can learn better with having the answer before hand and such. Well anyway, here are the examples.

1. (4 - i) + (3 + 2i) change to standard form

2. 5i(-2 + i)

Thanks everybody!^^
 
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Learn how to do it by hand FIRST. Doing it on the calculator will not help in your learning process, despite what you would like to believe.
 
For the TI-89, you use 2nd Catalog, which has the i written above it.
 
I wrote a little blog post that explains exactly what you are looking for.

http://blog.ncday.net/2010/07/how-to-manipulate-complex-numbers.html"

I hope this helps!
 
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