How to solve matrix on TI-89 Titanium calculator?
The matrix equation is as follows: T=[A]^1 x [C}
I have the matrix A and C stored, and the matrix T is what i need to get, but i am confused as how to enter this in the home area of the calculator. I have entered it just like above, but the values i get are not correct. I tried entering it as [C] x [A]^1, but it gives me an error message that says "Dimensions"
Please help!
Answer:
Remember, matrix multiplication is not commutative. In other words, [A] * [C] != [C] * [A]. You're getting a Dimensions error because it's expecting an N-by-P matrix times a P-by-M matrix, and will give you an answer that's N-by-M. When you flip them, you're entering a P-by-M times a N-by-P..the center dimensions are not congruent and you'll get a Dimension error anytime N != M.
You'll have to enter it as you did first. If you put up your data, the supposed correct answer, and your answer, then maybe I can figure it out. Of course maybe you will too...
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