Question: solve a non-linear matrix equation

Ich searched a lot but solve return me an error or just don't solve it. An the linsolve package is the wrong for that use How can I solve something like this with maple: A := Matrix(2, 2, {(1, 1) = a, (1, 2) = b, (2, 1) = c, (2, 2) = d}) E := Matrix(2, 2, {(1, 1) = 1, (1, 2) = 0, (2, 1) = 0, (2, 2) = 1}) solve((VectorCalculus[DotProduct])(A, A) = E) brings an error A korrekt solution would be for A for Example Matrix(2, 2, {(1, 1) = 0, (1, 2) = 1, (2, 1) = 1, (2, 2) = 0}) us rene
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