Viewing topic: Cramer's Rule

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Cramer's Rule

  • Definition: Let A be an invertible nXn matrix and let b be a vector in R^n. Then the unique solution x of the system Ax=b is given by x_i = [det(A_j(b)]/(det A) for i-1, ... , n.

    Source: Linear Algebra: A Modern Introduction, 3rd edition by David Poole (note-custom edition titled Matrix Algebra)