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I need help in simultaneous equations: My questions is, I have Matrix A (3x3) and varialble x(3x1) and b(3x1). i.e. Ax=b. we can prove it. But, how to solve to get back of Matrix A(3x3) by using matrix x(3x1) and matrix b(3x1). pls help me. thanks

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SORNAGOPAL
SORNAGOPAL 2013-11-26
评论： John D'Errico 2013-11-27
Ax=b where A(3x3),x(3x1),b(3x1). here x(3x1) is unknown and can be found by cramer's rule. but by question is, After got the values of x(3x1). i need to verify or calculate the matrix A(3x3) by using x(3x1) and b(3x1).

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回答（2 个）

John D'Errico
John D'Errico 2013-11-26
You cannot do so. There is insufficient information do do this. No mathemagic will work.
Muneef
Muneef 2013-11-26
Using structs. they can be helpful

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