ODE Lecture Notes, Section 7.3

Systems of Linear Algebraic Equations. A system of n linear equations in n variables can be written in matrix form as follows: ((If , then the system is homogeneous; otherwise, it is nonhomogeneous. If . A. is nonsingular (i.e., det(A) ( 0), then . A-1 exists, and the unique solution to the system is: A picture for the 3 ( 3 system is: Solution ... ................
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