Question: Maple still evaluating 9 hours later: Is it my Maths, Code or PC?

Hi

I have a system of 33 equations in 33 unknowns. I figured I could use Linear Algebra and Maple to solve this system. Now nearly 9 hours later Maple is still 'Evaluating'. It's been many years since I studied Mathematics and I am very rusty since I rarely use what I learned directly in my job.

Also this is my first attempt at using Maple so please be gentle if you see a ridiculously stupid mistake :-)

I'm wondering if it is my Maths, my code or my PC specs (1.7 GHz Intel Pentium M, 512 MB RAM) that is causing Maple to take so long to 'Evaluate' or is this normal?

Here's the Maths I based the code on:-

[A][W] = [CA]

=> [W] = [Inverse[A]][CA]

where [A] is a 33x33 matrix containing real coefficients, [W] is a 33x1 matrix of real unknowns and [CA] is a 33x1 matrix of the real RHS of the equations.

Here's the code I used (I imported the matrices from Excel)

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ArrayA := Import ("C:\\Documents and Settings\\Administrator\\Desktop\\CA.xls", "Matrix A", "A1:AG33")

ArrayCA := Import ("C:\\Documents and Settings\\Administrator\\Desktop\\CA.xls", "Matrix CA", "A1:A33")

MatrixA := Matrix(33, 33, ArrayA)

MatrixCA := Matrix(33, 1, ArrayCA)

with LinearAlgebra

MatrixW := Multiply((MatrixInverse(MatrixA)), MatrixCA)

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Any help greatly appreciated