WolframAlpha computational knowledge AI
{{1/Sqrt[2], -(1/Sqrt[2])}, {1/Sqrt[2], 1/Sqrt[2]}}{{4 Sqrt[5], 0}, {0, 2 Sqrt[5]}}{{1/Sqrt[10], 3/Sqrt[10]}, {-3/Sqrt[10], 1/Sqrt[10]}}