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thanks

- Thread starter lavster
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thanks

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Mark44

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I'm guessing you're talking about a matrix equation A

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For a unique solution to the system, the determinant of A must be nonzero; i.e., must NOT vanish. If det(A) is not zero, then A has an inverse, so the solution to the system is obtained by multiplying both sides of the equation by A

A

If the determinant of A vanishes (i.e., det(A) = 0), then A does not have an inverse, which means in this case that there are an infinite number of solutions.

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