Square root of a 2 by 2 matrix

ID: square-root-of-a-2-by-2-matrix

The square root of a 2x2 matrix \( A \) is a matrix \( B \) such that \( B^2 = A \). Finding the square root of a matrix can be a more complex operation than finding the square root of a scalar number, and not every matrix has a square root.

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