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Matrix Number and Solving Equation 2.

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Alexandrite

Matrix Number and Solving Equation 2.

Hello Everyone,

I have a question, wish learning about various way, and really need help. ( Refer to "Cramer's Rule" http://communities.ptc.com/message/152738#152738 )

MatrixEqn3.PNG

solve,X,Y,Z

Thanks in advance for any suggestion.

Regards,

Loi.

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3 REPLIES 3
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Re: Matrix Number and Solving Equation 2.

If these were not matrices you would have one equation in three unknowns--that problem has no unique solution. I'm pretty sure the same rules apply to matrices.

I can think of one solution easily: X and Y are 4x4 identity matrices.

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Re: Matrix Number and Solving Equation 2.

Thanks for your suggestion, Fred.

"that problem has no unique solution" Thanks again for that. And I think I am a new with built-in lu( ) function.

By lu( ) and By hand.PNG

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Re: Matrix Number and Solving Equation 2.

And I still have a related query :

U MatrixEqn.PNG

Thanks in advance for the time and help.

Best regards,

Loi.

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