Why ##\rho,\rho^2,\rho^3,\rho^4## are even transformation and ##\rho\sigma,\rho^2\sigma,\rho^3\sigma## are odd transformation. I'm talking about case of ##D_4## group, where ##\rho## is rotation and ##\sigma## is reflection.(adsbygoogle = window.adsbygoogle || []).push({});

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# Even and odd transformation

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