Can I Use My TI-84 for Nodal Analysis with Rectangle and Polar Form?

AI Thread Summary
The TI-84 calculator struggles with nodal analysis problems involving rectangular and polar forms, particularly when trying to input imaginary numbers, leading to errors. Users have noted that while the TI-89 can handle these calculations due to its specific functions, the TI-84 lacks the necessary features, such as the "∠" sign. Alternatives like MATLAB and Scilab are recommended for solving these types of problems, as they offer robust capabilities for complex matrices. The consensus is that the TI-84 is not suitable for this task, and upgrading to a more advanced calculator or using software may be necessary. Overall, the TI-84's limitations in this context make it an inadequate choice for nodal analysis.
alexander.s
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Hi,

I was wondering if it's possible to solve nodal analysis problems that include rectangle and polar form using the TI-84. It just gives me an error when I put in "i" as in imaginary when trying to put up my matrix. I've read it's possible to do with the TI-89, but I'd really rather not spend the money if it's possible to do on my current calculator. For example the TI-89 has the "∠" sign which the TI-84 doesn't seem to have, except for the "5e^(90i)" etc which isn't really something I want to use in bigger problems.

Thanks in advance!
 
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I have a TI-86 and it does complex matrices, but these guys:

http://freemathhelp.com/forum/viewtopic.php?f=6&t=25182

say that the TI-84 Plus can't do it, so probably the regular TI-84 can't either.
 
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To solve a matrix with polar or rectangular elements in TI-84, is unlikely possible. I use TI-89 Titanium to solve this kind of problem. Or if you have access to matlab, you can use it to solve the problem.
 
Scilab is also a very capable Matlab-like suite developed by a huge French Government team. It's FREE! and very well supported.
 

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