Question: Show that an n n linear system Ax = b over the complex numbers can be written as a 2n 2n system over the real

Show that an n n linear system Ax = b over the complex numbers can be written as a 2n 2n system over the real numbers. Hint: split the matrix and the vectors in their real and imaginary parts. Argue for the efficiency of storing arrays of complex numbers as separate arrays for the real and imaginary parts.

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