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I am new here. Could some one tell me how to insert Latex formulas into the threads?

About spin matrices:

we get imanary no. in these matrices.

Let's say we have S= n1.sx + n2.sy +n3.sz showing us the magnitude in each component (sx, sy, sz are the spin matrices/vectors). What does it show us? How should we interprete the imaginary no.?

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# Insert Latex formulas into the threads?

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