= Weight diagram of the defining SU(3) representation
{title2=$\mu_u=(1/2,1/3),\ \mu_d=(-1/2,1/3),\ \mu_s=(0,-2/3)$}
Using $I_3=\operatorname{diag}(1/2,-1/2,0)$ and flavour $Y=\operatorname{diag}(1/3,1/3,-2/3)$, the three coordinate vectors of the <SU(3) group> defining <group representation> have the displayed <weights of a representation>. The complex-conjugate <group representation> has their negatives. These coordinates use <flavor hypercharge>; another Cartan normalization rescales the vertical axis.
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