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 Dec9 comment Showing two matrices are similar Yes, I am sure. The first three matrices are what physicists call spin 1 representation. The final three matrices are the adjoint representation of SU(2) (excluding a phase factor of -i). The question is to show that the two representations are equivalent (a result which is used later to construct roots). I phrased only the computational part in my question. Dec9 revised Showing two matrices are similar edited title Dec8 asked Showing two matrices are similar Dec1 accepted Regular polygons meeting at a point Nov29 comment Regular polygons meeting at a point @J.M. But we're talking about polygons not polyhedrons. Nov28 revised Regular polygons meeting at a point deleted 44 characters in body Nov28 asked Regular polygons meeting at a point Nov11 revised How many three digits even numbers can we form such that if one of digit is $5$ the following digit must be $7$? added 303 characters in body Nov11 answered How many three digits even numbers can we form such that if one of digit is $5$ the following digit must be $7$? Oct26 accepted How to prove that handedness of the coordinate system does not change for S(pecial) linear transformations Oct25 comment Is there a binary spigot algorithm for log(23) or log(89)? I'm wondering why I got notified without @. Anyhow, regarding the above comment, what has your reputation got to do with it? Oct21 asked How to prove that handedness of the coordinate system does not change for S(pecial) linear transformations Oct18 revised Subgroups of $S_4$ isomorphic to $S_3$ and $S_2$? put in mathjax delimiters and edited in some TeX Oct18 suggested approved edit on Subgroups of $S_4$ isomorphic to $S_3$ and $S_2$? Oct18 comment Calculating the matrix hmm... going over wikipeidia, there's another method.. to use $e^{A}Be^{-A}=B+[A,B]+\frac{1}{2!}[A,[A,B]]+\frac{1}{3!}[A,[A,[A,B]]]+\cdots$ Oct18 accepted Calculating the matrix Oct18 asked Calculating the matrix Oct15 answered Copy LaTex equations from Mathematica to Word directly? Oct14 comment Elementary question in partial differentiation @Tyler Yes (hindi). As I wrote in chat an hour ago, it is a close approximation of my progress in mathematics. Oct14 awarded Talkative